{"title":"Diesel Oxidation Catalysts (DOC) — G-Sport by GESi®","description":"\u003cp\u003eThe DOC series is the diesel side of the G-Sport line. Unlike the three-way catalysts used on gas engines, a \u003cstrong\u003eDiesel Oxidation Catalyst\u003c\/strong\u003e is built for lean diesel exhaust: its precious-metal coating oxidizes carbon monoxide and unburned hydrocarbons — the compounds behind diesel smoke smell and haze — into carbon dioxide and water. On a custom or competition diesel that has shed its factory aftertreatment, a DOC delivers a noticeable cleanup in odor and visible emissions with minimal restriction, built on a \u003cstrong\u003e200 CPSI S-Wound metallic core\u003c\/strong\u003e in stainless steel. Three sizes cover most builds: \u003cstrong\u003e2.500\"\u003c\/strong\u003e and \u003cstrong\u003e3.000\"\u003c\/strong\u003e inlet\/outlet in the standard 4.000\" body, and a \u003cstrong\u003e6.000\"-body\u003c\/strong\u003e unit with maximum substrate area for hard-working trucks. Not EPA compliant — for custom and motorsport diesel applications where compliance is not required.\u003c\/p\u003e","products":[{"product_id":"g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12030","title":"G-Sport OBD2 DOC (Diesel Oxidation Catalyst) Non-EPA Compliant Catalytic Converter - 3.000\" Inlet\/Outlet (12030)","description":"\u003cp\u003e\u003cstrong\u003eAlso available in:\u003c\/strong\u003e \u003ca href=\"\/products\/g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12230\"\u003e6.000\" Body \/ 3.000\" Inlet-Outlet (12230)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eHIGH-FLOW EXHAUST CLEANUP FOR CUSTOM DIESEL BUILDS — G-SPORT DOC (DIESEL OXIDATION CATALYST)\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e G-Sport DOCs carry a lighter loaded catalyst and \u003cstrong\u003eare not EPA compliant\u003c\/strong\u003e. They are intended for \u003cstrong\u003ecustom and motorsport diesel applications where emissions compliance is not required\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe G-Sport DOC (12030) is a \u003cstrong\u003eDiesel Oxidation Catalyst\u003c\/strong\u003e: the diesel-specific member of the G-Sport line, built to clean up diesel exhaust on custom and competition builds. A \u003cstrong\u003e3.000\" inlet\/outlet\u003c\/strong\u003e welds into common diesel downpipe and exhaust tubing, and the \u003cstrong\u003e200 CPSI S-Wound metallic substrate\u003c\/strong\u003e keeps restriction low on high-flow diesel systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWHAT IS A DIESEL OXIDATION CATALYST?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlike the three-way catalysts used on gas engines, a DOC is an \u003cstrong\u003eoxidation catalyst built for the lean exhaust of a diesel\u003c\/strong\u003e. Its precious-metal coating oxidizes \u003cstrong\u003ecarbon monoxide and unburned hydrocarbons\u003c\/strong\u003e — the compounds behind diesel smoke smell and haze — into carbon dioxide and water as exhaust passes through. The result on a custom diesel build is a noticeable cleanup in exhaust odor and visible emissions without the flow penalty of factory aftertreatment, in a compact weld-in package built on GESi's proven S-Wound core and stainless construction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiesel-specific oxidation catalyst\u003c\/strong\u003e — targets CO and unburned hydrocarbons in lean diesel exhaust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 CPSI S-Wound metallic substrate\u003c\/strong\u003e — low restriction for high-flow diesel systems\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\u003eNot EPA compliant\u003c\/strong\u003e — for custom and motorsport diesel applications only\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 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\u003eType: Diesel Oxidation Catalyst (DOC)\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: 7.250\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 200 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: N\/A (application-rated, not horsepower-tiered)\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: No — custom and motorsport diesel applications only\u003c\/li\u003e\n\u003cli\u003eWeight: 2.86 lbs\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\u003eBuilt for \u003cstrong\u003ecustom and competition diesel exhaust systems\u003c\/strong\u003e — race trucks, pullers, off-road rigs, and custom builds running 3.000\" tubing where factory aftertreatment has been replaced and compliance is not required. Running larger tubing or wanting maximum substrate area? The \u003ca href=\"\/products\/g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12230\"\u003e6.000\"-body DOC (12230)\u003c\/a\u003e carries a much larger core with the same 3.000\" inlet\/outlet.\u003c\/p\u003e\n\u003cp\u003eFor the full G-Sport range, 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\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a weld-in unit for 3.000\" exhaust tubing. Install with leak-free joints, downstream of the turbo where exhaust temperatures remain high enough for the catalyst to work effectively, and with adequate clearance from wiring and heat-sensitive components. Full 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\u003cp\u003eNot sure which DOC suits your diesel build? Email us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e with your platform, tubing size, and how the truck is used and we will point you to the right part.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41494592913471,"sku":"GSP12030","price":240.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Non-EPA-OBD2-Corrected.png?v=1787941533"},{"product_id":"g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12230","title":"G-Sport OBD2 DOC (Diesel Oxidation Catalyst) Non-EPA Compliant Catalytic Converter - 3.000\" Inlet\/Outlet (12230)","description":"\u003cp\u003e\u003cstrong\u003eAlso available in:\u003c\/strong\u003e \u003ca href=\"\/products\/g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12030\"\u003e4.000\" Body \/ 3.000\" Inlet-Outlet (12030)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eMAXIMUM SUBSTRATE AREA FOR HIGH-FLOW DIESEL BUILDS — G-SPORT DOC, 6.000\" BODY\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e G-Sport DOCs carry a lighter loaded catalyst and \u003cstrong\u003eare not EPA compliant\u003c\/strong\u003e. They are intended for \u003cstrong\u003ecustom and motorsport diesel applications where emissions compliance is not required\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe G-Sport DOC (12230) is the \u003cstrong\u003ebig-body Diesel Oxidation Catalyst\u003c\/strong\u003e in the line: a \u003cstrong\u003e6.000\" OD x 9.500\" long\u003c\/strong\u003e housing that carries far more substrate cross-section than the 4.000\"-body model, fed through a \u003cstrong\u003e3.000\" inlet\/outlet\u003c\/strong\u003e. Flow area scales with the square of diameter, so the larger core keeps restriction minimal on hard-working, high-flow diesel systems while giving the catalyst substantially more surface area to work with.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWHAT IS A DIESEL OXIDATION CATALYST?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlike the three-way catalysts used on gas engines, a DOC is an \u003cstrong\u003eoxidation catalyst built for the lean exhaust of a diesel\u003c\/strong\u003e. Its precious-metal coating oxidizes \u003cstrong\u003ecarbon monoxide and unburned hydrocarbons\u003c\/strong\u003e — the compounds behind diesel smoke smell and haze — into carbon dioxide and water as exhaust passes through. The result on a custom diesel build is a noticeable cleanup in exhaust odor and visible emissions without the flow penalty of factory aftertreatment, in a weld-in package built on GESi's proven S-Wound core and stainless construction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLargest DOC in the line\u003c\/strong\u003e — 6.000\" OD x 9.500\" body for maximum substrate area and minimum restriction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiesel-specific oxidation catalyst\u003c\/strong\u003e — targets CO and unburned hydrocarbons in lean diesel exhaust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 CPSI S-Wound metallic substrate\u003c\/strong\u003e, nickel-lined and furnace-brazed with Double-Lock canning\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\u003eNot EPA compliant\u003c\/strong\u003e — for custom and motorsport diesel applications only\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 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\u003eType: Diesel Oxidation Catalyst (DOC)\u003c\/li\u003e\n\u003cli\u003eInlet\/Outlet: 3.000\"\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 6.000\" OD\u003c\/li\u003e\n\u003cli\u003eOverall Length: 9.500\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 200 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: N\/A (application-rated, not horsepower-tiered)\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: No — custom and motorsport diesel applications only\u003c\/li\u003e\n\u003cli\u003eWeight: 6.12 lbs\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\u003eBuilt for \u003cstrong\u003ehard-working custom and competition diesel systems\u003c\/strong\u003e — race trucks, pullers, and off-road rigs where exhaust volume is high, factory aftertreatment has been replaced, and compliance is not required. Tighter packaging? The \u003ca href=\"\/products\/g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12030\"\u003e4.000\"-body DOC (12030)\u003c\/a\u003e fits where the 6.000\" body will not.\u003c\/p\u003e\n\u003cp\u003eFor the full G-Sport range, 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\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a weld-in unit for 3.000\" exhaust tubing — confirm clearance for the 6.000\" OD x 9.500\" body before ordering. Install with leak-free joints, downstream of the turbo where exhaust temperatures remain high enough for the catalyst to work effectively, and with adequate clearance from wiring and heat-sensitive components. Full 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\u003cp\u003eNot sure which DOC suits your diesel build? Email us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e with your platform, tubing size, and how the truck is used and we will point you to the right part.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":41984506626111,"sku":"GSP12230","price":544.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Non-EPA-OBD2-Corrected.png?v=1787941533"},{"product_id":"g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-2-500-inlet-outlet-12025","title":"G-Sport OBD2 DOC (Diesel Oxidation Catalyst) Non-EPA Compliant Catalytic Converter - 2.500\" Inlet\/Outlet (12025)","description":"\u003cp\u003e\u003cstrong\u003eAlso available in:\u003c\/strong\u003e \u003ca href=\"\/products\/g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12030\"\u003e3.000\" Inlet\/Outlet (12030)\u003c\/a\u003e | \u003ca href=\"\/products\/g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12230\"\u003e6.000\" Body \/ 3.000\" Inlet-Outlet (12230)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eHIGH-FLOW EXHAUST CLEANUP FOR 2.500\" DIESEL SYSTEMS — G-SPORT DOC (DIESEL OXIDATION CATALYST)\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e G-Sport DOCs carry a lighter loaded catalyst and \u003cstrong\u003eare not EPA compliant\u003c\/strong\u003e. They are intended for \u003cstrong\u003ecustom and motorsport diesel applications where emissions compliance is not required\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe G-Sport DOC (12025) is the \u003cstrong\u003e2.500\" version of the 12030 Diesel Oxidation Catalyst\u003c\/strong\u003e — the compact member of the diesel line, sized for smaller-displacement diesels and tighter exhaust routing. The \u003cstrong\u003e2.500\" inlet\/outlet\u003c\/strong\u003e welds into 2.500\" tubing, and the \u003cstrong\u003e200 CPSI S-Wound metallic substrate\u003c\/strong\u003e keeps restriction low while cleaning up exhaust odor and haze on custom builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWHAT IS A DIESEL OXIDATION CATALYST?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlike the three-way catalysts used on gas engines, a DOC is an \u003cstrong\u003eoxidation catalyst built for the lean exhaust of a diesel\u003c\/strong\u003e. Its precious-metal coating oxidizes \u003cstrong\u003ecarbon monoxide and unburned hydrocarbons\u003c\/strong\u003e — the compounds behind diesel smoke smell and haze — into carbon dioxide and water as exhaust passes through. The result on a custom diesel build is a noticeable cleanup in exhaust odor and visible emissions without the flow penalty of factory aftertreatment, in a compact weld-in package built on GESi's proven S-Wound core and stainless construction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiesel-specific oxidation catalyst\u003c\/strong\u003e — targets CO and unburned hydrocarbons in lean diesel exhaust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 2.500\" inlet\/outlet\u003c\/strong\u003e — the smallest DOC in the line, for tighter routing and smaller-displacement diesels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 CPSI S-Wound metallic substrate\u003c\/strong\u003e, nickel-lined and furnace-brazed with Double-Lock canning\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\u003eNot EPA compliant\u003c\/strong\u003e — for custom and motorsport diesel applications only\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 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\u003eType: Diesel Oxidation Catalyst (DOC)\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: 7.250\" (±0.125\")\u003c\/li\u003e\n\u003cli\u003eCell Count: 200 CPSI\u003c\/li\u003e\n\u003cli\u003eHP Rating: N\/A (application-rated, not horsepower-tiered)\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: No — custom and motorsport diesel applications only\u003c\/li\u003e\n\u003cli\u003eWeight: 2.86 lbs\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\u003eBuilt for \u003cstrong\u003ecustom and competition diesel exhaust systems running 2.500\" tubing\u003c\/strong\u003e — smaller diesels, swaps, and off-road rigs where factory aftertreatment has been replaced and compliance is not required. Running 3.000\" tubing? See the \u003ca href=\"\/products\/g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12030\"\u003eDOC 3.000\" (12030)\u003c\/a\u003e, or the \u003ca href=\"\/products\/g-sport-obd2-doc-diesel-oxidation-catalyst-non-epa-compliant-catalytic-converter-3-000-inlet-outlet-12230\"\u003e6.000\"-body DOC (12230)\u003c\/a\u003e for maximum substrate area.\u003c\/p\u003e\n\u003cp\u003eFor the full G-Sport range, 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\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a weld-in unit for 2.500\" exhaust tubing. Install with leak-free joints, downstream of the turbo where exhaust temperatures remain high enough for the catalyst to work effectively, and with adequate clearance from wiring and heat-sensitive components. Full 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\u003cp\u003eNot sure which DOC suits your diesel build? Email us at \u003ca href=\"mailto:support@aceraceparts.com\"\u003esupport@aceraceparts.com\u003c\/a\u003e with your platform, tubing size, and how the truck is used and we will point you to the right part.\u003c\/p\u003e","brand":"G-Sport","offers":[{"title":"Default Title","offer_id":42469839568959,"sku":"GSP12025","price":233.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/files\/G-Sport-Non-EPA-OBD2-Corrected.png?v=1787941533"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/8304\/collections\/G-Sport-GEN1-Advanced-Hero-UHO-Blank_dcdecbfb-f80a-4c4f-a79c-fae8d606326b.png?v=1787941936","url":"https:\/\/www.aceraceparts.com\/collections\/g-sport-doc.oembed","provider":"Ace Race Parts","version":"1.0","type":"link"}