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Catalytic Converters

Catalytic Converters are available from brands like G-Sport (by GESI) and MagnaFlow Performance and are available in configurations like core/substrate only and complete catalytic converters with transition cone end caps. All G-Sport catalytic converters are EPA compliant. NOTE: None of the Catalytic Converters listed on this site are CARB compliant and are... Read More
G-Sport GESI HO 2.500" Inlet/Outlet Gen1 EPA Compliant Catalytic Converter 300 CPSI (50025) - Ace Race Parts

G-Sport Gen1 HO EPA Compliant Catalytic Converter - 2.500" Inlet/Outlet (50022)

SKU GSP50022
$ 614.10 - $ 614.10
$ 614.10
$ 614.10 - $ 614.10
$ 614.10
Only 4 left!

GESI's universal line of G-Sport Emissions Systems Catalytic Converters are designed to support the growing high performance aftermarket. GESI's co...

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G-Sport GESI UHO 3.000" Inlet/Outlet Gen1 EPA Compliant Catalytic Converter 300 CPSI (85030) - Ace Race Parts

G-Sport Gen1 UHO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (85032)

SKU GSP85032
$ 733.01 - $ 733.01
$ 733.01
$ 733.01 - $ 733.01
$ 733.01
Only 1 left!

GESI's universal line of G-Sport Emissions Systems Catalytic Converters are designed to support the growing high performance aftermarket. GESI's co...

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G-Sport GESI Gen2 EPA Compliant Catalytic Converter Core - 4.000" Body x 4.000" Long - 400 CPSI (50200) - Ace Race Parts

G-Sport Gen2 EPA Compliant Catalytic Converter Core - 4.000" Body x 4.000" Long (50200)

SKU GSP50200
$ 600.56 - $ 600.56
$ 600.56
$ 600.56 - $ 600.56
$ 600.56
Only 1 left!

GESI G-Sport part number 50200 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. GESI's universal line of G-Sport Emissions...

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G-Sport GESI Gen2 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long - 400 CPSI (85200) - Ace Race Parts

G-Sport Gen2 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long (85200)

SKU GSP85200
$ 710.43 - $ 710.43
$ 710.43
$ 710.43 - $ 710.43
$ 710.43
Only 1 left!

GESI G-Sport part number 85200 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. GESI's universal line of G-Sport Emissions...

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G-Sport GESI Gen2 EPA Compliant Catalytic Converter Core - 5.000" Body x 4.000" Long - 400 CPSI (85500) - Ace Race Parts

G-Sport Gen2 EPA Compliant Catalytic Converter Core - 5.000" Body x 4.000" Long (85500)

SKU GSP85500
$ 835.36 - $ 835.36
$ 835.36
$ 835.36 - $ 835.36
$ 835.36
Only 1 left!

GESI G-Sport part number 85500 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. GESI's universal line of G-Sport Emissions...

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G-Sport Gen2 EPA Compliant Catalytic Converter Core - 5.000" Body x 7.000" Long - Mid-Bed Series (25001)

SKU GSP25001
$ 1,092.66 - $ 1,092.66
$ 1,092.66
$ 1,092.66 - $ 1,092.66
$ 1,092.66
Only 2 left!

GESI G-Sport part number 25001 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. GESI's universal line of G-Sport Emissions...

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G-Sport GESI Gen2 EPA Compliant Catalytic Converter Core - 6.000" Body x 4.000" Long - 400 CPSI (85600) - Ace Race Parts

G-Sport Gen2 EPA Compliant Catalytic Converter Core - 6.000" Body x 4.000" Long (85600)

SKU GSP85600
$ 1,041.57 - $ 1,041.57
$ 1,041.57
$ 1,041.57 - $ 1,041.57
$ 1,041.57
Only 2 left!

GESI G-Sport part number 85600 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. GESI's universal line of G-Sport Emissions...

View full details
G-Sport GESI HO 3.000" Inlet/Outlet Gen1 EPA Compliant Catalytic Converter 300 CPSI (50030) - Ace Race Parts

G-Sport HO Gen1 EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (50032)

SKU GSP50032
$ 626.15 - $ 626.15
$ 626.15
$ 626.15 - $ 626.15
$ 626.15
Only 2 left!

GESI's universal line of G-Sport Emissions Systems Catalytic Converters are designed to support the growing high performance aftermarket. GESI's co...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core - 4.000" Body x 4.000" Long - 300 CPSI (50000) - Ace Race Parts

G-Sport HO Gen1 EPA Compliant Catalytic Converter Core - 4.000" Body x 4.000" Long (50002)

SKU GSP50002
$ 600.56 - $ 600.56
$ 600.56
$ 600.56 - $ 600.56
$ 600.56
Only 1 left!

GESI G-Sport part number 50000 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. GESI's universal line of G-Sport Emissions...

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G-Sport GESI HO 2.500" Inlet/Outlet Gen1 EPA Compliant Catalytic Converter 400 CPSI (50225) - Ace Race Parts

G-Sport HO Gen2 EPA Compliant - 2.500" Inlet/Outlet Catalytic Converter (50225)

SKU GSP50225
$ 614.10 - $ 614.10
$ 614.10
$ 614.10 - $ 614.10
$ 614.10
Only 2 left!

GESI's universal line of G-Sport Emissions Systems Catalytic Converters are designed to support the growing high performance aftermarket. GESI's co...

View full details
G-Sport GESI HO 2.500" Inlet/Outlet Gen1 EPA Compliant Catalytic Converter 400 CPSI (50225) - Ace Race Parts
Sold out

G-Sport HO Gen2 EPA Compliant - 3.000" Inlet/Outlet Catalytic Converter (50230)

SKU GSP50230
$ 626.15 - $ 626.15
$ 626.15
$ 626.15 - $ 626.15
$ 626.15
Out of stock

GESI's universal line of G-Sport Emissions Systems Catalytic Converters are designed to support the growing high performance aftermarket. GESI's co...

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G-Sport GESI Transition Cone For 4.000" OD Body Catalytic Converters - 2.500" Inlet/Outlet (94025) - Ace Race Parts

G-Sport Transition Cone For 4.000" OD Body Catalytic Converters - 2.500" Inlet/Outlet (94025)

SKU GSP94025
$ 29.69 - $ 29.69
$ 29.69
$ 29.69 - $ 29.69
$ 29.69
Only 4 left!

GESI's universal line of G-Sport Catalytic Converter Transition Cones create a smooth transition between G-Sport Catalytic Cores. This specific Tra...

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G-Sport GESI Transition Cone For 4.000" OD Body Catalytic Converters - 3.000" Inlet/Outlet (94030) - Ace Race Parts

G-Sport Transition Cone For 4.000" OD Body Catalytic Converters - 3.000" Inlet/Outlet (94030)

SKU GSP94030
$ 26.69 - $ 26.69
$ 26.69
$ 26.69 - $ 26.69
$ 26.69
Only 2 left!

GESI's universal line of G-Sport Catalytic Converter Transition Cones create a smooth transition between G-Sport Catalytic Cores. This specific Tra...

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G-Sport GESI Transition Cone For 4.500" OD Body Catalytic Converters - 3.000" Inlet/Outlet (94530) - Ace Race Parts

G-Sport Transition Cone For 4.500" OD Body Catalytic Converters - 3.000" Inlet/Outlet (94530)

SKU GSP94530
$ 49.49 - $ 49.49
$ 49.49
$ 49.49 - $ 49.49
$ 49.49
Only 2 left!

GESI's universal line of G-Sport Catalytic Converter Transition Cones create a smooth transition between G-Sport Catalytic Cores. This specific Tra...

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G-Sport GESI Transition Cone For 5.000" OD Body Catalytic Converters - 3.000" Inlet/Outlet (95530) - Ace Race Parts

G-Sport Transition Cone For 5.000" OD Body Catalytic Converters - 3.000" Inlet/Outlet (95530)

SKU GSP95530
$ 49.49 - $ 49.49
$ 49.49
$ 49.49 - $ 49.49
$ 49.49
Only 2 left!

GESI's universal line of G-Sport Catalytic Converter Transition Cones create a smooth transition between G-Sport Catalytic Cores. This specific Tra...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long - 300 CPSI (85000) - Ace Race Parts

G-Sport UHO Gen1 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long (85002)

SKU GSP85002
$ 710.43 - $ 710.43
$ 710.43
$ 710.43 - $ 710.43
$ 710.43
Only 1 left!

GESI G-Sport part number 85000 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. GESI's universal line of G-Sport Emissions...

View full details
Ace Race Parts | G-Sport 85240 - GESI 400 CPSI GEN 2 EPA Approved 4.0in Inlet/Outlet Catalytic Converter
Sold out

G-Sport UHO Gen2 EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (85230)

SKU GSP85230
$ 733.01 - $ 733.01
$ 733.01
$ 733.01 - $ 733.01
$ 733.01
Out of stock

GESI's universal line of G-Sport Emissions Systems Catalytic Converters are designed to support the growing high performance aftermarket. GESI's co...

View full details
Ace Race Parts | G-Sport 85240 - GESI 400 CPSI GEN 2 EPA Approved 4.0in Inlet/Outlet Catalytic Converter

G-Sport UHO Gen2 EPA Compliant Catalytic Converter - 4.000" Inlet/Outlet (85240)

SKU GSP85240
$ 749.57 - $ 749.57
$ 749.57
$ 749.57 - $ 749.57
$ 749.57
Only 1 left!

GESI's universal line of G-Sport Emissions Systems Catalytic Converters are designed to support the growing high performance aftermarket. GESI's 40...

View full details