{"title":"Gen1 EPA Compliant Catalytic Converters — G-Sport by GESi®","description":"\u003cp\u003eThe GEN1 Advanced series is the maximum-flow side of the G-Sport line: an EPA-compliant \u003cstrong\u003e300 CPSI S-Wound metallic core\u003c\/strong\u003e whose lower cell density gives it a measurable flow advantage, built for \u003cstrong\u003e1996–2016 OBD1\/OBD2 vehicles\u003c\/strong\u003e where it typically keeps catalyst-efficiency check engine lights off. Two output tiers cover most builds — \u003cstrong\u003eHO (4.000\" body, up to 500hp)\u003c\/strong\u003e and \u003cstrong\u003eUHO (4.500\" body, up to 850hp)\u003c\/strong\u003e — each offered as a weld-ready assembly with transition cones installed, a core-only unit for custom integration, or a discounted Fabricator 6-Pack for shops. Gen1's extra flow also makes it the recommended secondary converter in two-cat-per-bank systems, even on 2017+ vehicles. Not sure which generation your build needs? Start with \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"gesi-g-sport-uho-2-500-inlet-outlet-gen2-epa-compliant-catalytic-converter-400-cpsi-50022","title":"G-Sport Gen1 HO EPA Compliant Catalytic Converter - 2.500\" Inlet\/Outlet (50022)","description":"\u003cp\u003e\u003cstrong\u003eAlso available in:\u003c\/strong\u003e \u003ca href=\"\/products\/gesi-g-sport-ho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-50030\"\u003e3.000\" Inlet\/Outlet (50032)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gen1-ho-epa-compliant-catalytic-converter-core-6-pack-2-500-inlet-outlet-650002\"\u003eFabricator 6-Pack (650022)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eEPA-COMPLIANT HIGH-FLOW PERFORMANCE FOR 1996–2016 VEHICLES — G-SPORT GEN1 ADVANCED HO\u003c\/h5\u003e\n\u003cp\u003eThe G-Sport Gen1 Advanced HO Catalytic Converter (50022) brings \u003cstrong\u003eemissions-compliant high-flow performance\u003c\/strong\u003e to 2.500\" exhaust systems on \u003cstrong\u003e1996–2016 OBD1\/OBD2 vehicles\u003c\/strong\u003e. Rated up to \u003cstrong\u003e500hp per converter (per exhaust bank)\u003c\/strong\u003e, it is built for street-driven and performance builds where flow matters and the factory catalyst monitoring is less aggressive than on late-model platforms.\u003c\/p\u003e\n\u003cp\u003eThe GEN1 Advanced series pairs GESi's proven \u003cstrong\u003eS-Wound metallic substrate in a 300 CPSI cell count\u003c\/strong\u003e with their proprietary precious-metal wash coat. The lower cell density gives Gen1 a \u003cstrong\u003eslight flow advantage over the 400 CPSI Gen2\u003c\/strong\u003e, and it typically keeps catalyst-efficiency check engine lights off on 2016-and-older OBD systems. Building a 2017 or newer vehicle? Use the \u003ca href=\"\/products\/g-sport-ho-gen2-epa-compliant-3-000-inlet-outlet-catalytic-converter-50225\"\u003eGen2 HO 2.500\" (50225)\u003c\/a\u003e instead — its coating is engineered for the tighter monitoring on those platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e — thinner cell walls than ceramic and a lower cell density for maximum flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary precious-metal wash coat\u003c\/strong\u003e tuned for 1996–2016 OBD emissions monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed core with Double-Lock canning\u003c\/strong\u003e — the substrate cannot telescope or fail under boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 Series stainless steel construction\u003c\/strong\u003e inside and out\u003c\/li\u003e\n\u003cli\u003eWithstands exhaust temperature spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInlet\/Outlet: 2.500\"\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.000\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 7.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 500hp per converter (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 2.56 lbs\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePERFORMANCE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn instrumented dyno testing with pressure probes upstream and downstream of the substrate, a properly sized G-Sport high-flow catalytic converter produced \u003cstrong\u003ehorsepower and torque curves identical to a straight pipe\u003c\/strong\u003e, with no measurable pressure drop across the core. Emissions reduction runs up to 99% for carbon monoxide, 98% for nitrogen oxides, and 95% for hydrocarbons.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Dyno-Test-Horsepower-and-Torque-Dodge-Viper-1-1920w_600x600.webp?v=1739990090\" alt=\"G-Sport high-flow catalytic converter dyno test results, horsepower and torque | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose the Gen1 HO for builds up to \u003cstrong\u003e500hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles running 2.500\" tubing. Building past 500hp? Step up to the \u003ca href=\"\/products\/g-sport-gesi-uho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-85030\"\u003eGen1 UHO 3.000\" (85032)\u003c\/a\u003e or \u003ca href=\"\/products\/g-sport-gen1-uho-epa-compliant-catalytic-converter-4-000-inlet-outlet-85042\"\u003eGen1 UHO 4.000\" (85042)\u003c\/a\u003e, rated to 850hp. One more Gen1 trick worth knowing: on systems running \u003cstrong\u003etwo converters per bank\u003c\/strong\u003e, a Gen1 is the recommended choice for the unmonitored \u003cstrong\u003esecondary position — even on 2017+ vehicles\u003c\/strong\u003e — where its extra flow pairs with a Gen2 primary for maximum flow with full compliance.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a weld-in converter for 2.500\" exhaust tubing. For best catalyst light-off and CEL prevention, install it as close to the OEM converter location as practical — on custom systems, within 8\"–24\" of the turbo outlet or header collector. In dual-bank systems, run the \u003cstrong\u003esame converter model on both banks\u003c\/strong\u003e; mixing generations or sizes between banks can cause uneven backpressure and inconsistent O2 readings. Full best practices, common mistakes, and a pre-flight checklist are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNot sure which generation or output tier your build needs? Email us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e with your platform, power goal, and tubing size and we will point you to the right part.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":39399981875263,"sku":"GSP50022","price":614.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-GEN1-Advanced-Hero-HO-Blank.png?v=1787873657"},{"product_id":"gesi-g-sport-ho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-50030","title":"G-Sport Gen1 HO EPA Compliant Catalytic Converter - 3.000\" Inlet\/Outlet (50032)","description":"\u003cp\u003e\u003cstrong\u003eAlso available in:\u003c\/strong\u003e \u003ca href=\"\/products\/gesi-g-sport-uho-2-500-inlet-outlet-gen2-epa-compliant-catalytic-converter-400-cpsi-50022\"\u003e2.500\" Inlet\/Outlet (50022)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gen1-ho-epa-compliant-catalytic-converter-6-pack-3-000-inlet-outlet-650032\"\u003eFabricator 6-Pack (650032)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eEPA-COMPLIANT HIGH-FLOW PERFORMANCE FOR 1996–2016 VEHICLES — G-SPORT GEN1 ADVANCED HO\u003c\/h5\u003e\n\u003cp\u003eThe G-Sport Gen1 Advanced HO Catalytic Converter (50032) is the workhorse of the Gen1 line: a \u003cstrong\u003e3.000\" inlet\/outlet\u003c\/strong\u003e matched to the most common single-turbo and performance tubing size, rated up to \u003cstrong\u003e500hp per converter (per exhaust bank)\u003c\/strong\u003e, and built for \u003cstrong\u003e1996–2016 OBD1\/OBD2 vehicles\u003c\/strong\u003e where flow matters and factory catalyst monitoring is less aggressive than on late-model platforms.\u003c\/p\u003e\n\u003cp\u003eThe GEN1 Advanced series pairs GESi's proven \u003cstrong\u003eS-Wound metallic substrate in a 300 CPSI cell count\u003c\/strong\u003e with their proprietary precious-metal wash coat. The lower cell density gives Gen1 a \u003cstrong\u003eslight flow advantage over the 400 CPSI Gen2\u003c\/strong\u003e, and it typically keeps catalyst-efficiency check engine lights off on 2016-and-older OBD systems. Building a 2017 or newer vehicle? Use the \u003ca href=\"\/products\/g-sport-ho-gen2-epa-compliant-3-000-inlet-outlet-catalytic-converter-50230\"\u003eGen2 HO 3.000\" (50230)\u003c\/a\u003e instead — its coating is engineered for the tighter monitoring on those platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e — thinner cell walls than ceramic and a lower cell density for maximum flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary precious-metal wash coat\u003c\/strong\u003e tuned for 1996–2016 OBD emissions monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed core with Double-Lock canning\u003c\/strong\u003e — the substrate cannot telescope or fail under boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 Series stainless steel construction\u003c\/strong\u003e inside and out\u003c\/li\u003e\n\u003cli\u003eWithstands exhaust temperature spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInlet\/Outlet: 3.000\"\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.000\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 7.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 500hp per converter (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 2.70 lbs\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePERFORMANCE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn instrumented dyno testing with pressure probes upstream and downstream of the substrate, a properly sized G-Sport high-flow catalytic converter produced \u003cstrong\u003ehorsepower and torque curves identical to a straight pipe\u003c\/strong\u003e, with no measurable pressure drop across the core. Emissions reduction runs up to 99% for carbon monoxide, 98% for nitrogen oxides, and 95% for hydrocarbons.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Dyno-Test-Horsepower-and-Torque-Dodge-Viper-1-1920w_600x600.webp?v=1739990090\" alt=\"G-Sport high-flow catalytic converter dyno test results, horsepower and torque | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose the Gen1 HO for builds up to \u003cstrong\u003e500hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles running 3.000\" tubing. Building past 500hp? The \u003ca href=\"\/products\/g-sport-gesi-uho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-85030\"\u003eGen1 UHO 3.000\" (85032)\u003c\/a\u003e keeps the same inlet\/outlet with a larger 4.500\" body rated to 850hp. One more Gen1 trick worth knowing: on systems running \u003cstrong\u003etwo converters per bank\u003c\/strong\u003e, a Gen1 is the recommended choice for the unmonitored \u003cstrong\u003esecondary position — even on 2017+ vehicles\u003c\/strong\u003e — where its extra flow pairs with a Gen2 primary for maximum flow with full compliance.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a weld-in converter for 3.000\" exhaust tubing. For best catalyst light-off and CEL prevention, install it as close to the OEM converter location as practical — on custom systems, within 8\"–24\" of the turbo outlet or header collector. In dual-bank systems, run the \u003cstrong\u003esame converter model on both banks\u003c\/strong\u003e; mixing generations or sizes between banks can cause uneven backpressure and inconsistent O2 readings. Full best practices, common mistakes, and a pre-flight checklist are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNot sure which generation or output tier your build needs? Email us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e with your platform, power goal, and tubing size and we will point you to the right part.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":39399993278527,"sku":"GSP50032","price":626.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-GEN1-Advanced-Hero-HO-Blank.png?v=1787873657"},{"product_id":"gesi-g-sport-gen1-epa-compliant-catalytic-converter-core-4-000-body-x-4-000-long-300-cpsi-50002","title":"G-Sport Gen1 HO EPA Compliant Catalytic Converter Core - 4.000\" Body x 4.000\" Long (50002)","description":"\u003cp\u003e\u003cstrong\u003eAlso available:\u003c\/strong\u003e \u003ca href=\"\/products\/g-sport-gesi-gen1-epa-compliant-catalytic-converter-core-4-500-body-x-4-000-long-300-cpsi-85000\"\u003eUHO 4.500\" Core (85002)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gesi-gen1-epa-compliant-catalytic-converter-core-6-pack-4-000-body-x-4-000-long-300-cpsi-650000\"\u003eFabricator 6-Pack (650002)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eEPA-COMPLIANT CORE-ONLY FLOW FOR CUSTOM EXHAUST BUILDS — G-SPORT GEN1 ADVANCED HO CORE\u003c\/h5\u003e\n\u003cp\u003eThe G-Sport Gen1 Advanced HO Catalytic Converter Core (50002) is the \u003cstrong\u003ecore-only version of the Gen1 HO converter\u003c\/strong\u003e: a bare 4.000\" OD x 4.000\" long substrate canister ready for full custom integration on \u003cstrong\u003e1996–2016 OBD1\/OBD2 vehicles\u003c\/strong\u003e. Rated up to \u003cstrong\u003e500hp per core (per exhaust bank)\u003c\/strong\u003e, with the 300 CPSI cell density that gives Gen1 its flow advantage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis is the catalytic core only — transition cones are sold separately.\u003c\/strong\u003e The matching cones for a 4.000\" OD body are the \u003ca href=\"\/products\/gesi-g-sport-catalytic-converter-transition-cone-2-500-inlet-outlet-x-4-000-body-94025\"\u003e2.500\" Transition Cone (94025)\u003c\/a\u003e and \u003ca href=\"\/products\/gesi-g-sport-catalytic-converter-transition-cone-3-000-inlet-outlet-x-4-000-body-94030\"\u003e3.000\" Transition Cone (94030)\u003c\/a\u003e, or you can fabricate your own transitions.\u003c\/p\u003e\n\u003cp\u003eThe GEN1 Advanced series pairs GESi's proven \u003cstrong\u003eS-Wound metallic substrate in a 300 CPSI cell count\u003c\/strong\u003e with their proprietary precious-metal wash coat, which typically keeps catalyst-efficiency check engine lights off on 2016-and-older OBD systems. Building a 2017 or newer vehicle? Use the \u003ca href=\"\/products\/gesi-g-sport-gen2-epa-compliant-catalytic-converter-core-4-000-body-x-4-000-long-400-cpsi-85200\"\u003eGen2 HO Core (50200)\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore-only format\u003c\/strong\u003e for full custom exhaust integration — weld directly into your system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e — thinner cell walls than ceramic and a lower cell density for maximum flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary precious-metal wash coat\u003c\/strong\u003e tuned for 1996–2016 OBD emissions monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed substrate\u003c\/strong\u003e locked to its stainless mantle — will not telescope or fail under boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 Series stainless steel construction\u003c\/strong\u003e; withstands exhaust temperature spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold As: Catalytic core only (transition cones sold separately)\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.000\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 4.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 500hp per core (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 2.25 lbs\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePERFORMANCE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn instrumented dyno testing with pressure probes upstream and downstream of the substrate, a properly sized G-Sport high-flow catalytic converter produced \u003cstrong\u003ehorsepower and torque curves identical to a straight pipe\u003c\/strong\u003e, with no measurable pressure drop across the core. Emissions reduction runs up to 99% for carbon monoxide, 98% for nitrogen oxides, and 95% for hydrocarbons.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Dyno-Test-Horsepower-and-Torque-Dodge-Viper-1-1920w_600x600.webp?v=1739990090\" alt=\"G-Sport high-flow catalytic converter dyno test results, horsepower and torque | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose the Gen1 HO core for custom builds up to \u003cstrong\u003e500hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles. Building past 500hp? The \u003ca href=\"\/products\/g-sport-gesi-gen1-epa-compliant-catalytic-converter-core-4-500-body-x-4-000-long-300-cpsi-85000\"\u003eGen1 UHO Core (85002)\u003c\/a\u003e is rated to 850hp. Prefer a weld-ready converter with cones already installed? See the \u003ca href=\"\/products\/gesi-g-sport-uho-2-500-inlet-outlet-gen2-epa-compliant-catalytic-converter-400-cpsi-50022\"\u003eGen1 HO 2.500\" (50022)\u003c\/a\u003e and \u003ca href=\"\/products\/gesi-g-sport-ho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-50030\"\u003eGen1 HO 3.000\" (50032)\u003c\/a\u003e assemblies. Gen1's extra flow also makes this core the recommended choice for the unmonitored \u003cstrong\u003esecondary position\u003c\/strong\u003e in two-converter-per-bank systems — even on 2017+ vehicles with a Gen2 primary.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis core welds into your system via transition cones (94025 or 94030 for this body size) or custom-fabricated transitions. For best catalyst light-off and CEL prevention, install it as close to the OEM converter location as practical — on custom systems, within 8\"–24\" of the turbo outlet or header collector. In dual-bank systems, run the \u003cstrong\u003esame core model on both banks\u003c\/strong\u003e; mixing generations or sizes between banks can cause uneven backpressure and inconsistent O2 readings. Full best practices, common mistakes, and a pre-flight checklist are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNot sure which generation or output tier your build needs? Email us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e with your platform, power goal, and tubing size and we will point you to the right part.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":39399994425407,"sku":"GSP50002","price":600.56,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/products\/5b8ea40043c02ffb3e6626a3777aa0b5.png?v=1626739330"},{"product_id":"g-sport-gesi-gen1-epa-compliant-catalytic-converter-core-6-pack-4-000-body-x-4-000-long-300-cpsi-650000","title":"G-Sport Gen1 HO EPA Compliant Catalytic Converter Core 6 Pack - 4.000\" Body x 4.000\" Long (650002)","description":"\u003cp\u003e\u003cstrong\u003eAlso available:\u003c\/strong\u003e \u003ca href=\"\/products\/gesi-g-sport-gen1-epa-compliant-catalytic-converter-core-4-000-body-x-4-000-long-300-cpsi-50000\"\u003eSingle core (50002)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gen1-uho-epa-compliant-catalytic-converter-core-6-pack-4-500-body-x-4-000-long-685002\"\u003eUHO Core 6-Pack (685002)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFABRICATOR 6-PACK — G-SPORT GEN1 ADVANCED HO CATALYTIC CONVERTER CORES, 4.000\" BODY\u003c\/h5\u003e\n\u003cp\u003eThis listing is a \u003cstrong\u003eFabricator 6-Pack: six G-Sport Gen1 Advanced HO Catalytic Converter Cores (part number 50002)\u003c\/strong\u003e at a discounted per-unit price. Core-only format, 4.000\" OD x 4.000\" long, rated up to \u003cstrong\u003e500hp per core (per exhaust bank)\u003c\/strong\u003e — shelf stock for shops that integrate converters into custom systems on \u003cstrong\u003e1996–2016 OBD1\/OBD2 platforms\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThese are catalytic cores only — transition cones are sold separately.\u003c\/strong\u003e The matching cones for a 4.000\" OD body are the \u003ca href=\"\/products\/gesi-g-sport-catalytic-converter-transition-cone-2-500-inlet-outlet-x-4-000-body-94025\"\u003e2.500\" Transition Cone (94025)\u003c\/a\u003e and \u003ca href=\"\/products\/gesi-g-sport-catalytic-converter-transition-cone-3-000-inlet-outlet-x-4-000-body-94030\"\u003e3.000\" Transition Cone (94030)\u003c\/a\u003e, sold individually.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet of six GSP50002 cores\u003c\/strong\u003e at a discounted per-unit price\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore-only format\u003c\/strong\u003e for full custom exhaust integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e with proprietary wash coat for 1996–2016 OBD monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed substrate\u003c\/strong\u003e; 300 Series stainless steel throughout; spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS (PER CORE)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold As: Set of six cores (part number 50002); transition cones sold separately\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.000\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 4.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 500hp per core (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 2.25 lbs each\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for shops building custom systems up to \u003cstrong\u003e500hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles. For higher-output Gen1 work, the \u003ca href=\"\/products\/g-sport-gen1-uho-epa-compliant-catalytic-converter-core-6-pack-4-500-body-x-4-000-long-685002\"\u003eGen1 UHO Core 6-Pack (685002)\u003c\/a\u003e is rated to 850hp per core; for late-model work, the \u003ca href=\"\/products\/g-sport-gen2-epa-compliant-catalytic-converter-core-6-pack-4-000-body-x-4-000-long-650200\"\u003eGen2 HO Core 6-Pack (650200)\u003c\/a\u003e covers 2017 and newer platforms. Install each core as close to the OEM location as practical — within 8\"–24\" of the turbo outlet or header collector — and always run the same core model on both banks of a dual-bank system.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e; installation best practices are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003eRunning volume beyond 6-Packs, or stocking regularly? Our wholesale program covers G-Sport — email \u003ca href=\"mailto:sales@aceraceparts.com\"\u003esales@aceraceparts.com\u003c\/a\u003e. For fitment or sizing questions, reach us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":39400005140543,"sku":"GSP650002","price":3099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/products\/G-Sport-Catalytic-Converter-6-pack-2-750x521.png?v=1626739936"},{"product_id":"g-sport-gesi-uho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-85030","title":"G-Sport Gen1 UHO EPA Compliant Catalytic Converter - 3.000\" Inlet\/Outlet (85032)","description":"\u003cp\u003e\u003cstrong\u003eAlso available in:\u003c\/strong\u003e \u003ca href=\"\/products\/g-sport-gen1-uho-epa-compliant-catalytic-converter-4-000-inlet-outlet-85042\"\u003e4.000\" Inlet\/Outlet (85042)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gen1-uho-epa-compliant-catalytic-converter-3-000-inlet-outlet-685032\"\u003eFabricator 6-Pack (685032)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003e850HP OF EPA-COMPLIANT FLOW FOR 1996–2016 VEHICLES — G-SPORT GEN1 ADVANCED UHO\u003c\/h5\u003e\n\u003cp\u003eThe G-Sport Gen1 Advanced UHO (Ultra High Output) Catalytic Converter (85032) is built for \u003cstrong\u003ehigh-output builds up to 850hp per converter (per exhaust bank)\u003c\/strong\u003e on \u003cstrong\u003e1996–2016 OBD1\/OBD2 vehicles\u003c\/strong\u003e. Its 4.500\" body carries substantially more substrate cross-section than the HO models — total flow area comparable on paper to an open 3.000\" straight pipe — while the \u003cstrong\u003e3.000\" inlet\/outlet\u003c\/strong\u003e welds directly into common performance tubing.\u003c\/p\u003e\n\u003cp\u003eThe GEN1 Advanced series pairs GESi's proven \u003cstrong\u003eS-Wound metallic substrate in a 300 CPSI cell count\u003c\/strong\u003e with their proprietary precious-metal wash coat. The lower cell density gives Gen1 a \u003cstrong\u003eslight flow advantage over the 400 CPSI Gen2\u003c\/strong\u003e, and it typically keeps catalyst-efficiency check engine lights off on 2016-and-older OBD systems. Building a 2017 or newer vehicle? Use the \u003ca href=\"\/products\/g-sport-gesi-uho-3-inch-inlet-outlet-gen2-epa-compliant-catalytic-converter-400-cpsi-85230\"\u003eGen2 UHO 3.000\" (85230)\u003c\/a\u003e instead — its coating is engineered for the tighter monitoring on those platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated up to 850hp per converter\u003c\/strong\u003e — 4.500\" body for maximum substrate flow area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e — thinner cell walls than ceramic and a lower cell density for maximum flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary precious-metal wash coat\u003c\/strong\u003e tuned for 1996–2016 OBD emissions monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed core with Double-Lock canning\u003c\/strong\u003e — the substrate cannot telescope or fail under boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 Series stainless steel construction\u003c\/strong\u003e inside and out; withstands spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInlet\/Outlet: 3.000\"\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.500\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 7.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 850hp per converter (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 3.02 lbs\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePERFORMANCE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn instrumented dyno testing with pressure probes upstream and downstream of the substrate, a properly sized G-Sport high-flow catalytic converter produced \u003cstrong\u003ehorsepower and torque curves identical to a straight pipe\u003c\/strong\u003e, with no measurable pressure drop across the core. Emissions reduction runs up to 99% for carbon monoxide, 98% for nitrogen oxides, and 95% for hydrocarbons.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Dyno-Test-Horsepower-and-Torque-Dodge-Viper-1-1920w_600x600.webp?v=1739990090\" alt=\"G-Sport high-flow catalytic converter dyno test results, horsepower and torque | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose the Gen1 UHO for builds between \u003cstrong\u003e500hp and 850hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles. Under 500hp, the \u003ca href=\"\/products\/gesi-g-sport-ho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-50030\"\u003eGen1 HO 3.000\" (50032)\u003c\/a\u003e packages a smaller 4.000\" body. Past 850hp, the Gen2-only \u003ca href=\"\/products\/gesi-g-sport-uho-gen2-epa-compliant-catalytic-converter-core-400-cpsi-85500\"\u003eUHO+ 5.000\" core (85500, 1,000hp)\u003c\/a\u003e and \u003ca href=\"\/products\/gesi-g-sport-gen2-epa-compliant-catalytic-converter-core-6-000-body-x-4-000-long-400-cpsi-85600\"\u003eUHOX 6.000\" core (85600, 1,200hp)\u003c\/a\u003e are compatible with all model years. Gen1's extra flow also makes it the recommended choice for the unmonitored \u003cstrong\u003esecondary position\u003c\/strong\u003e in two-converter-per-bank systems — even on 2017+ vehicles with a Gen2 primary.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a weld-in converter for 3.000\" exhaust tubing. For best catalyst light-off and CEL prevention, install it as close to the OEM converter location as practical — on custom systems, within 8\"–24\" of the turbo outlet or header collector. In dual-bank systems, run the \u003cstrong\u003esame converter model on both banks\u003c\/strong\u003e; mixing generations or sizes between banks can cause uneven backpressure and inconsistent O2 readings. Full best practices, common mistakes, and a pre-flight checklist are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNot sure which generation or output tier your build needs? Email us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e with your platform, power goal, and tubing size and we will point you to the right part.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":39400007172159,"sku":"GSP85032","price":733.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-GEN1-Advanced-Hero-UHO-Blank.png?v=1787874074"},{"product_id":"g-sport-gesi-gen1-epa-compliant-catalytic-converter-core-4-500-body-x-4-000-long-300-cpsi-85000","title":"G-Sport Gen1 UHO EPA Compliant Catalytic Converter Core - 4.500\" Body x 4.000\" Long (85002)","description":"\u003cp\u003e\u003cstrong\u003eAlso available:\u003c\/strong\u003e \u003ca href=\"\/products\/gesi-g-sport-gen1-epa-compliant-catalytic-converter-core-4-000-body-x-4-000-long-300-cpsi-50000\"\u003eHO 4.000\" Core (50002)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gen1-uho-epa-compliant-catalytic-converter-core-6-pack-4-500-body-x-4-000-long-685002\"\u003eFabricator 6-Pack (685002)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003e850HP OF EPA-COMPLIANT FLOW, CORE ONLY — G-SPORT GEN1 ADVANCED UHO CORE\u003c\/h5\u003e\n\u003cp\u003eThe G-Sport Gen1 Advanced UHO (Ultra High Output) Catalytic Converter Core (85002) packs an \u003cstrong\u003e850hp-per-core rating\u003c\/strong\u003e into a bare 4.500\" OD x 4.000\" long canister built for full custom integration on \u003cstrong\u003e1996–2016 OBD1\/OBD2 vehicles\u003c\/strong\u003e. The larger body carries substantially more substrate cross-section than the HO core, and the 300 CPSI cell density gives it the most open flow area in the Gen1 range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis is the catalytic core only — transition cones are sold separately.\u003c\/strong\u003e The matching cone for a 4.500\" OD body is the \u003ca href=\"\/products\/gesi-g-sport-catalytic-converter-transition-cone-3-000-inlet-outlet-x-4-500-body-94530\"\u003e3.000\" Transition Cone (94530)\u003c\/a\u003e, or you can fabricate your own transitions.\u003c\/p\u003e\n\u003cp\u003eThe GEN1 Advanced series pairs GESi's proven \u003cstrong\u003eS-Wound metallic substrate\u003c\/strong\u003e with their proprietary precious-metal wash coat, which typically keeps catalyst-efficiency check engine lights off on 2016-and-older OBD systems. Building a 2017 or newer vehicle? Use the \u003ca href=\"\/products\/gesi-g-sport-gen2-epa-compliant-catalytic-converter-core-4-500-body-x-4-000-long-400-cpsi-85200\"\u003eGen2 UHO Core (85200)\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated up to 850hp per core\u003c\/strong\u003e — 4.500\" body for maximum substrate flow area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore-only format\u003c\/strong\u003e for full custom exhaust integration — weld directly into your system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e — thinner cell walls than ceramic and a lower cell density for maximum flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed substrate\u003c\/strong\u003e locked to its stainless mantle — will not telescope or fail under boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 Series stainless steel construction\u003c\/strong\u003e; withstands exhaust temperature spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold As: Catalytic core only (transition cones sold separately)\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.500\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 4.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 850hp per core (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 2.52 lbs\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePERFORMANCE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn instrumented dyno testing with pressure probes upstream and downstream of the substrate, a properly sized G-Sport high-flow catalytic converter produced \u003cstrong\u003ehorsepower and torque curves identical to a straight pipe\u003c\/strong\u003e, with no measurable pressure drop across the core. Emissions reduction runs up to 99% for carbon monoxide, 98% for nitrogen oxides, and 95% for hydrocarbons.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Dyno-Test-Horsepower-and-Torque-Dodge-Viper-1-1920w_600x600.webp?v=1739990090\" alt=\"G-Sport high-flow catalytic converter dyno test results, horsepower and torque | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose the Gen1 UHO core for custom builds between \u003cstrong\u003e500hp and 850hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles. Past 850hp, the Gen2-only \u003ca href=\"\/products\/gesi-g-sport-uho-gen2-epa-compliant-catalytic-converter-core-400-cpsi-85500\"\u003eUHO+ 5.000\" core (85500, 1,000hp)\u003c\/a\u003e and \u003ca href=\"\/products\/gesi-g-sport-gen2-epa-compliant-catalytic-converter-core-6-000-body-x-4-000-long-400-cpsi-85600\"\u003eUHOX 6.000\" core (85600, 1,200hp)\u003c\/a\u003e are compatible with all model years. Prefer a weld-ready converter with cones already installed? See the \u003ca href=\"\/products\/g-sport-gesi-uho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-85030\"\u003eGen1 UHO 3.000\" (85032)\u003c\/a\u003e and \u003ca href=\"\/products\/g-sport-gen1-uho-epa-compliant-catalytic-converter-4-000-inlet-outlet-85042\"\u003eGen1 UHO 4.000\" (85042)\u003c\/a\u003e assemblies. Gen1's extra flow also makes this core the recommended choice for the unmonitored \u003cstrong\u003esecondary position\u003c\/strong\u003e in two-converter-per-bank systems — even on 2017+ vehicles with a Gen2 primary.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis core welds into your system via the 94530 transition cone or custom-fabricated transitions. For best catalyst light-off and CEL prevention, install it as close to the OEM converter location as practical — on custom systems, within 8\"–24\" of the turbo outlet or header collector. In dual-bank systems, run the \u003cstrong\u003esame core model on both banks\u003c\/strong\u003e; mixing generations or sizes between banks can cause uneven backpressure and inconsistent O2 readings. Full best practices, common mistakes, and a pre-flight checklist are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNot sure which generation or output tier your build needs? Email us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e with your platform, power goal, and tubing size and we will point you to the right part.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":39400010219583,"sku":"GSP85002","price":710.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/products\/a8eeea022cb7df088f09312b0f652f6a.png?v=1626740471"},{"product_id":"g-sport-gen1-ho-epa-compliant-catalytic-converter-core-6-pack-2-500-inlet-outlet-650002","title":"G-Sport Gen1 HO EPA Compliant Catalytic Converter 6 Pack - 2.500\" Inlet\/Outlet (650022)","description":"\u003cp\u003e\u003cstrong\u003eAlso available:\u003c\/strong\u003e \u003ca href=\"\/products\/gesi-g-sport-uho-2-500-inlet-outlet-gen2-epa-compliant-catalytic-converter-400-cpsi-50022\"\u003eSingle unit (50022)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gen1-ho-epa-compliant-catalytic-converter-6-pack-3-000-inlet-outlet-650032\"\u003e6-Pack in 3.000\" (650032)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFABRICATOR 6-PACK — G-SPORT GEN1 ADVANCED HO CATALYTIC CONVERTERS, 2.500\"\u003c\/h5\u003e\n\u003cp\u003eThis listing is a \u003cstrong\u003eFabricator 6-Pack: six complete G-Sport Gen1 Advanced HO Catalytic Converters (part number 50022)\u003c\/strong\u003e at a discounted per-unit price — full weld-in converters with transition cones installed, not bare cores. It is built for exhaust manufacturers and fabrication shops that regularly work on \u003cstrong\u003e1996–2016 OBD1\/OBD2 platforms\u003c\/strong\u003e and want stock on the shelf.\u003c\/p\u003e\n\u003cp\u003eEach converter carries a \u003cstrong\u003e2.500\" inlet\/outlet\u003c\/strong\u003e and is rated up to \u003cstrong\u003e500hp per converter (per exhaust bank)\u003c\/strong\u003e. The GEN1 Advanced series pairs GESi's proven \u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e — the lower cell density that gives Gen1 its flow advantage — with a proprietary precious-metal wash coat that typically keeps catalyst-efficiency check engine lights off on 2016-and-older OBD systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet of six complete GSP50022 converters\u003c\/strong\u003e at a discounted per-unit price\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e with proprietary wash coat for 1996–2016 OBD monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed core with Double-Lock canning\u003c\/strong\u003e — will not telescope or fail under boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 Series stainless steel construction\u003c\/strong\u003e; withstands spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS (PER CONVERTER)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold As: Set of six complete converters (part number 50022)\u003c\/li\u003e\n\u003cli\u003eInlet\/Outlet: 2.500\"\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.000\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 7.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 500hp per converter (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 2.56 lbs each\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for shops building systems up to \u003cstrong\u003e500hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles running 2.500\" tubing. For late-model work, the \u003ca href=\"\/products\/g-sport-gen2-ho-epa-compliant-catalytic-converter-6-pack-2-500-inlet-outlet-650225\"\u003eGen2 HO 6-Pack (650225)\u003c\/a\u003e covers 2017 and newer platforms. Install each converter as close to the OEM location as practical — on custom systems, within 8\"–24\" of the turbo outlet or header collector — and always run the same model on both banks of a dual-bank system.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e; installation best practices are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003eRunning volume beyond 6-Packs, or stocking regularly? Our wholesale program covers G-Sport — email \u003ca href=\"mailto:sales@aceraceparts.com\"\u003esales@aceraceparts.com\u003c\/a\u003e. For fitment or sizing questions, reach us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41499741454399,"sku":"GSP650022","price":3199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/products\/G-Sport-Catalytic-Converter-6-pack-2-750x521.png?v=1626739936"},{"product_id":"g-sport-gen1-ho-epa-compliant-catalytic-converter-6-pack-3-000-inlet-outlet-650032","title":"G-Sport Gen1 HO EPA Compliant Catalytic Converter 6 Pack - 3.000\" Inlet\/Outlet (650032)","description":"\u003cp\u003e\u003cstrong\u003eAlso available:\u003c\/strong\u003e \u003ca href=\"\/products\/gesi-g-sport-ho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-50030\"\u003eSingle unit (50032)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gen1-ho-epa-compliant-catalytic-converter-core-6-pack-2-500-inlet-outlet-650002\"\u003e6-Pack in 2.500\" (650022)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFABRICATOR 6-PACK — G-SPORT GEN1 ADVANCED HO CATALYTIC CONVERTERS, 3.000\"\u003c\/h5\u003e\n\u003cp\u003eThis listing is a \u003cstrong\u003eFabricator 6-Pack: six complete G-Sport Gen1 Advanced HO Catalytic Converters (part number 50032)\u003c\/strong\u003e at a discounted per-unit price. The 3.000\" inlet\/outlet is the size most shops burn through fastest, which makes this the pack to keep on the shelf for \u003cstrong\u003e1996–2016 OBD1\/OBD2\u003c\/strong\u003e exhaust work.\u003c\/p\u003e\n\u003cp\u003eEach converter is rated up to \u003cstrong\u003e500hp per converter (per exhaust bank)\u003c\/strong\u003e. The GEN1 Advanced series pairs GESi's proven \u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e — the lower cell density that gives Gen1 its flow advantage — with a proprietary precious-metal wash coat that typically keeps catalyst-efficiency check engine lights off on 2016-and-older OBD systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet of six complete GSP50032 converters\u003c\/strong\u003e at a discounted per-unit price\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e with proprietary wash coat for 1996–2016 OBD monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed core with Double-Lock canning\u003c\/strong\u003e — will not telescope or fail under boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 Series stainless steel construction\u003c\/strong\u003e; withstands spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS (PER CONVERTER)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold As: Set of six complete converters (part number 50032)\u003c\/li\u003e\n\u003cli\u003eInlet\/Outlet: 3.000\"\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.000\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 7.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 500hp per converter (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 2.70 lbs each\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for shops building systems up to \u003cstrong\u003e500hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles running 3.000\" tubing. For higher-output Gen1 work, the \u003ca href=\"\/products\/g-sport-gen1-uho-epa-compliant-catalytic-converter-3-000-inlet-outlet-685032\"\u003eGen1 UHO 6-Pack (685032)\u003c\/a\u003e is rated to 850hp per converter; for late-model work, the \u003ca href=\"\/products\/g-sport-gen2-ho-epa-compliant-catalytic-converter-6-pack-3-000-inlet-outlet-650230\"\u003eGen2 HO 6-Pack (650230)\u003c\/a\u003e covers 2017 and newer platforms. Install each converter as close to the OEM location as practical — within 8\"–24\" of the turbo outlet or header collector — and always run the same model on both banks of a dual-bank system.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e; installation best practices are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003eRunning volume beyond 6-Packs, or stocking regularly? Our wholesale program covers G-Sport — email \u003ca href=\"mailto:sales@aceraceparts.com\"\u003esales@aceraceparts.com\u003c\/a\u003e. For fitment or sizing questions, reach us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41499756003391,"sku":"GSP650032","price":3095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/products\/G-Sport-Catalytic-Converter-6-pack-2-750x521.png?v=1626739936"},{"product_id":"g-sport-gen1-uho-epa-compliant-catalytic-converter-core-6-pack-4-500-body-x-4-000-long-685002","title":"G-Sport Gen1 UHO EPA Compliant Catalytic Converter Core 6 Pack - 4.500\" Body x 4.000\" Long (685002)","description":"\u003cp\u003e\u003cstrong\u003eAlso available:\u003c\/strong\u003e \u003ca href=\"\/products\/g-sport-gesi-gen1-epa-compliant-catalytic-converter-core-4-500-body-x-4-000-long-300-cpsi-85000\"\u003eSingle core (85002)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gesi-gen1-epa-compliant-catalytic-converter-core-6-pack-4-000-body-x-4-000-long-300-cpsi-650000\"\u003eHO Core 6-Pack (650002)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFABRICATOR 6-PACK — G-SPORT GEN1 ADVANCED UHO CATALYTIC CONVERTER CORES, 4.500\" BODY\u003c\/h5\u003e\n\u003cp\u003eThis listing is a \u003cstrong\u003eFabricator 6-Pack: six G-Sport Gen1 Advanced UHO (Ultra High Output) Catalytic Converter Cores (part number 85002)\u003c\/strong\u003e at a discounted per-unit price. Core-only format, 4.500\" OD x 4.000\" long, rated up to \u003cstrong\u003e850hp per core (per exhaust bank)\u003c\/strong\u003e — for shops doing regular high-output custom work on \u003cstrong\u003e1996–2016 OBD1\/OBD2 platforms\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThese are catalytic cores only — transition cones are sold separately.\u003c\/strong\u003e The matching cone for a 4.500\" OD body is the \u003ca href=\"\/products\/gesi-g-sport-catalytic-converter-transition-cone-3-000-inlet-outlet-x-4-500-body-94530\"\u003e3.000\" Transition Cone (94530)\u003c\/a\u003e, sold individually.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet of six GSP85002 cores\u003c\/strong\u003e at a discounted per-unit price\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated up to 850hp per core\u003c\/strong\u003e — 4.500\" body for maximum substrate flow area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e with proprietary wash coat for 1996–2016 OBD monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed substrate\u003c\/strong\u003e; 300 Series stainless steel throughout; spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS (PER CORE)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold As: Set of six cores (part number 85002); transition cones sold separately\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.500\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 4.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 850hp per core (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 2.52 lbs each\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for shops building custom systems between \u003cstrong\u003e500hp and 850hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles. For work under 500hp, the \u003ca href=\"\/products\/g-sport-gesi-gen1-epa-compliant-catalytic-converter-core-6-pack-4-000-body-x-4-000-long-300-cpsi-650000\"\u003eGen1 HO Core 6-Pack (650002)\u003c\/a\u003e packages a smaller 4.000\" body; for late-model work, the \u003ca href=\"\/products\/g-sport-gen2-epa-compliant-catalytic-converter-core-6-pack-4-500-body-x-4-000-long-85200\"\u003eGen2 UHO Core 6-Pack (685200)\u003c\/a\u003e covers 2017 and newer platforms. Install each core as close to the OEM location as practical — within 8\"–24\" of the turbo outlet or header collector — and always run the same core model on both banks of a dual-bank system.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e; installation best practices are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003eRunning volume beyond 6-Packs, or stocking regularly? Our wholesale program covers G-Sport — email \u003ca href=\"mailto:sales@aceraceparts.com\"\u003esales@aceraceparts.com\u003c\/a\u003e. For fitment or sizing questions, reach us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41499852701759,"sku":"GSP685002","price":3595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/products\/G-Sport-Catalytic-Converter-6-pack-2-750x521.png?v=1626739936"},{"product_id":"g-sport-gen1-uho-epa-compliant-catalytic-converter-3-000-inlet-outlet-685032","title":"G-Sport Gen1 UHO EPA Compliant Catalytic Converter 6 Pack - 3.000\" Inlet\/Outlet (685032)","description":"\u003cp\u003e\u003cstrong\u003eAlso available:\u003c\/strong\u003e \u003ca href=\"\/products\/g-sport-gesi-uho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-85030\"\u003eSingle unit (85032)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gen1-ho-epa-compliant-catalytic-converter-6-pack-3-000-inlet-outlet-650032\"\u003eHO 6-Pack in 3.000\" (650032)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFABRICATOR 6-PACK — G-SPORT GEN1 ADVANCED UHO CATALYTIC CONVERTERS, 3.000\"\u003c\/h5\u003e\n\u003cp\u003eThis listing is a \u003cstrong\u003eFabricator 6-Pack: six complete G-Sport Gen1 Advanced UHO (Ultra High Output) Catalytic Converters (part number 85032)\u003c\/strong\u003e at a discounted per-unit price. Each converter is rated up to \u003cstrong\u003e850hp per converter (per exhaust bank)\u003c\/strong\u003e, with a 4.500\" body whose total substrate flow area is comparable on paper to an open 3.000\" straight pipe — the pack for shops doing serious high-output work on \u003cstrong\u003e1996–2016 OBD1\/OBD2 platforms\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe GEN1 Advanced series pairs GESi's proven \u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e — the lower cell density that gives Gen1 its flow advantage — with a proprietary precious-metal wash coat that typically keeps catalyst-efficiency check engine lights off on 2016-and-older OBD systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet of six complete GSP85032 converters\u003c\/strong\u003e at a discounted per-unit price\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated up to 850hp per converter\u003c\/strong\u003e — 4.500\" body for maximum substrate flow area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e with proprietary wash coat for 1996–2016 OBD monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed core with Double-Lock canning\u003c\/strong\u003e; 300 Series stainless steel throughout; spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS (PER CONVERTER)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold As: Set of six complete converters (part number 85032)\u003c\/li\u003e\n\u003cli\u003eInlet\/Outlet: 3.000\"\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.500\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 7.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 850hp per converter (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 3.02 lbs each\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for shops building systems between \u003cstrong\u003e500hp and 850hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles running 3.000\" tubing. For work under 500hp, the \u003ca href=\"\/products\/g-sport-gen1-ho-epa-compliant-catalytic-converter-6-pack-3-000-inlet-outlet-650032\"\u003eGen1 HO 6-Pack (650032)\u003c\/a\u003e packages a smaller 4.000\" body; for late-model work, the \u003ca href=\"\/products\/g-sport-gesi-gen2-epa-compliant-catalytic-converter-core-6-pack-4-500-body-x-7-000-long-300-cpsi-685230\"\u003eGen2 UHO 6-Pack (685230)\u003c\/a\u003e covers 2017 and newer platforms. Install each converter as close to the OEM location as practical — within 8\"–24\" of the turbo outlet or header collector — and always run the same model on both banks of a dual-bank system.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e; installation best practices are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003eRunning volume beyond 6-Packs, or stocking regularly? Our wholesale program covers G-Sport — email \u003ca href=\"mailto:sales@aceraceparts.com\"\u003esales@aceraceparts.com\u003c\/a\u003e. For fitment or sizing questions, reach us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41499865448511,"sku":"GSP685032","price":3795.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/products\/G-Sport-Catalytic-Converter-6-pack-2-750x521.png?v=1626739936"},{"product_id":"g-sport-gen1-uho-epa-compliant-catalytic-converter-4-000-inlet-outlet-85042","title":"G-Sport Gen1 UHO EPA Compliant Catalytic Converter - 4.000\" Inlet\/Outlet (85042)","description":"\u003cp\u003e\u003cstrong\u003eAlso available in:\u003c\/strong\u003e \u003ca href=\"\/products\/g-sport-gesi-uho-3-000-inlet-outlet-gen1-epa-compliant-catalytic-converter-300-cpsi-85030\"\u003e3.000\" Inlet\/Outlet (85032)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-gen1-uho-epa-compliant-catalytic-converter-core-6-pack-4-500-body-x-4-000-long-685002\"\u003eUHO Core 6-Pack (685002)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003e850HP OF EPA-COMPLIANT FLOW FOR BIG-BORE EXHAUST SYSTEMS — G-SPORT GEN1 ADVANCED UHO\u003c\/h5\u003e\n\u003cp\u003eThe G-Sport Gen1 Advanced UHO (Ultra High Output) Catalytic Converter (85042) is the largest inlet\/outlet in the Gen1 line: a full \u003cstrong\u003e4.000\" inlet\/outlet\u003c\/strong\u003e for big-bore single-turbo and high-displacement systems on \u003cstrong\u003e1996–2016 OBD1\/OBD2 vehicles\u003c\/strong\u003e, rated up to \u003cstrong\u003e850hp per converter (per exhaust bank)\u003c\/strong\u003e. The 4.500\" body keeps total substrate flow area comparable on paper to an open straight pipe, so the converter is not the restriction in the system.\u003c\/p\u003e\n\u003cp\u003eThe GEN1 Advanced series pairs GESi's proven \u003cstrong\u003eS-Wound metallic substrate in a 300 CPSI cell count\u003c\/strong\u003e with their proprietary precious-metal wash coat. The lower cell density gives Gen1 a \u003cstrong\u003eslight flow advantage over the 400 CPSI Gen2\u003c\/strong\u003e, and it typically keeps catalyst-efficiency check engine lights off on 2016-and-older OBD systems. Building a 2017 or newer vehicle? Use the \u003ca href=\"\/products\/gesi-g-sport-4-000-inlet-outlet-gen2-epa-compliant-catalytic-converter-400-cpsi-85240\"\u003eGen2 UHO 4.000\" (85240)\u003c\/a\u003e instead — its coating is engineered for the tighter monitoring on those platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated up to 850hp per converter\u003c\/strong\u003e — 4.500\" body, full 4.000\" inlet\/outlet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 CPSI S-Wound metallic substrate\u003c\/strong\u003e — thinner cell walls than ceramic and a lower cell density for maximum flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProprietary precious-metal wash coat\u003c\/strong\u003e tuned for 1996–2016 OBD emissions monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel-lined, furnace-brazed core with Double-Lock canning\u003c\/strong\u003e — the substrate cannot telescope or fail under boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e300 Series stainless steel construction\u003c\/strong\u003e inside and out; withstands spikes up to \u003cstrong\u003e1,600°F\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA compliant\u003c\/strong\u003e — third-party lab tested (not CARB certified; not for use on emissions-controlled vehicles in California)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Advanced-Catalytic-NEW-cross-section-product-features-1920w.webp?v=1739989638\" alt=\"G-Sport Gen1 Advanced catalytic converter cross-section and construction features | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInlet\/Outlet: 4.000\"\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 4.500\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 7.000\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 300 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: up to 850hp per converter (per exhaust bank)\u003c\/li\u003e\n\u003cli\u003eSubstrate: S-Wound metallic, furnace-brazed\u003c\/li\u003e\n\u003cli\u003eMaterial: 300 Series stainless steel\u003c\/li\u003e\n\u003cli\u003eEPA Compliant: Yes (not CARB certified)\u003c\/li\u003e\n\u003cli\u003eWeight: 3.41 lbs\u003c\/li\u003e\n\u003cli\u003eConnection: Welding Required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePERFORMANCE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn instrumented dyno testing with pressure probes upstream and downstream of the substrate, a properly sized G-Sport high-flow catalytic converter produced \u003cstrong\u003ehorsepower and torque curves identical to a straight pipe\u003c\/strong\u003e, with no measurable pressure drop across the core. Emissions reduction runs up to 99% for carbon monoxide, 98% for nitrogen oxides, and 95% for hydrocarbons.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Dyno-Test-Horsepower-and-Torque-Dodge-Viper-1-1920w_600x600.webp?v=1739990090\" alt=\"G-Sport high-flow catalytic converter dyno test results, horsepower and torque | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAPPLICATIONS \u0026amp; FITMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose the Gen1 UHO 4.000\" for builds between \u003cstrong\u003e500hp and 850hp per exhaust bank\u003c\/strong\u003e on 1996–2016 vehicles running 4.000\" tubing. Past 850hp, the Gen2-only \u003ca href=\"\/products\/gesi-g-sport-uho-gen2-epa-compliant-catalytic-converter-core-400-cpsi-85500\"\u003eUHO+ 5.000\" core (85500, 1,000hp)\u003c\/a\u003e and \u003ca href=\"\/products\/gesi-g-sport-gen2-epa-compliant-catalytic-converter-core-6-000-body-x-4-000-long-400-cpsi-85600\"\u003eUHOX 6.000\" core (85600, 1,200hp)\u003c\/a\u003e are compatible with all model years. Gen1's extra flow also makes it the recommended choice for the unmonitored \u003cstrong\u003esecondary position\u003c\/strong\u003e in two-converter-per-bank systems — even on 2017+ vehicles with a Gen2 primary.\u003c\/p\u003e\n\u003cp\u003eFor the full selection guide, see \u003ca href=\"\/blogs\/news\/understanding-the-g-sport-catalytic-converter-lineup\"\u003eUnderstanding the G-Sport Catalytic Converter Lineup\u003c\/a\u003e and our \u003ca href=\"\/blogs\/news\/g-sport-catalytic-converters-explained-generations-performance-ratings-and-installation-tips\"\u003eG-Sport FAQ\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/4-1920w.webp?v=1739989768\" alt=\"G-Sport GEN1 vs GEN2 vs Non-EPA catalytic converter comparison chart | Ace Race Parts\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a weld-in converter for 4.000\" exhaust tubing. For best catalyst light-off and CEL prevention, install it as close to the OEM converter location as practical — on custom systems, within 8\"–24\" of the turbo outlet or header collector. In dual-bank systems, run the \u003cstrong\u003esame converter model on both banks\u003c\/strong\u003e; mixing generations or sizes between banks can cause uneven backpressure and inconsistent O2 readings. Full best practices, common mistakes, and a pre-flight checklist are in our \u003ca href=\"\/blogs\/g-sport\/g-sport-catalytic-converter-installation-guidelines\"\u003eG-Sport Installation Guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNot sure which generation or output tier your build needs? Email us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e with your platform, power goal, and tubing size and we will point you to the right part.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41984504660031,"sku":"GSP85042","price":749.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-GEN1-Advanced-Hero-UHO-Blank.png?v=1787874074"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/collections\/G-Sport-GEN1-Advanced-Hero-UHO-Blank.png?v=1787939566","url":"https:\/\/www.aceraceparts.com\/collections\/g-sport-gen1.oembed","provider":"Ace Race Parts","version":"1.0","type":"link"}