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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 Gen1 EPA Compliant Catalytic Converter Core - 4.000" Body x 4.000" Long - 300 CPSI (50000) - Ace Race Parts
    Sold out

    G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core - 4.000" Body x 4.000" Long - 300 CPSI (50000)

    SKU GSP50002
    $ 600.56 - $ 600.56
    $ 600.56
    $ 600.56 - $ 600.56
    $ 600.56
    Out of stock

    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 Gen1 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long - 300 CPSI (85000) - Ace Race Parts

    G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long - 300 CPSI (85000)

    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...

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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
    Sold out

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

    SKU GSP50200
    $ 600.56 - $ 600.56
    $ 600.56
    $ 600.56 - $ 600.56
    $ 600.56
    Out of stock

    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 GESI Gen2 EPA Compliant Catalytic Converter Core - 4.500" Body x 4.000" Long - 400 CPSI (85200)

    SKU GSP85200
    $ 710.43 - $ 710.43
    $ 710.43
    $ 710.43 - $ 710.43
    $ 710.43
    In stock

    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 GESI Gen2 EPA Compliant Catalytic Converter Core - 5.000" Body x 4.000" Long - 400 CPSI (85500)

    SKU GSP85500
    $ 835.36 - $ 835.36
    $ 835.36
    $ 835.36 - $ 835.36
    $ 835.36
    In stock

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

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

    SKU GSP85600
    $ 1,041.57 - $ 1,041.57
    $ 1,041.57
    $ 1,041.57 - $ 1,041.57
    $ 1,041.57
    In stock

    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...

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  • G-Sport GESI HO 2.500" Inlet/Outlet Gen1 EPA Compliant Catalytic Converter 300 CPSI (50025) - Ace Race Parts

    G-Sport GESI HO 2.500" Inlet/Outlet Gen1 EPA Compliant Catalytic Converter 300 CPSI (50025)

    SKU GSP50022
    $ 614.10 - $ 614.10
    $ 614.10
    $ 614.10 - $ 614.10
    $ 614.10
    In 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 GESI 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
    In stock

    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
    Sold out

    G-Sport GESI 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
    Out of stock

    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
    Sold out

    G-Sport GESI 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
    Out of stock

    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 GESI 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
    In stock

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

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

    SKU GSP85032
    $ 733.01 - $ 733.01
    $ 733.01
    $ 733.01 - $ 733.01
    $ 733.01
    In 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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  • Ace Race Parts | G-Sport 85240 - GESI 400 CPSI GEN 2 EPA Approved 4.0in Inlet/Outlet Catalytic Converter
    Sold out

    G-Sport GESI UHO 3.000" Inlet/Outlet Gen2 EPA Compliant Catalytic Converter 400 CPSI (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 GESI UHO 4.000" Inlet/Outlet Gen2 EPA Compliant Catalytic Converter 400 CPSI (85240)

    SKU GSP85240
    $ 749.57 - $ 749.57
    $ 749.57
    $ 749.57 - $ 749.57
    $ 749.57
    In stock

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

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  • MagnaFlow Universal Spun Catalytic Converter - 2.500" Inlet/Outlet (59956) - Ace Race Parts

    MagnaFlow Universal Spun Catalytic Converter - 2.500" Inlet/Outlet (59956)

    SKU 59956
    $ 190.00 - $ 190.00
    $ 190.00
    $ 190.00 - $ 190.00
    $ 190.00
    Only 1 left!

    These MagnaFlow 59956 universal spun catalytic converters utilize the revolutionary new catalyst technology. Using new manufacturing technology, Ma...

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  • MagnaFlow Universal Spun Catalytic Converter - 2.750" Inlet/Outlet (59958) - Ace Race Parts

    MagnaFlow Universal Spun Catalytic Converter - 2.750" Inlet/Outlet (59958)

    SKU 59958
    $ 202.00 - $ 202.00
    $ 202.00
    $ 202.00 - $ 202.00
    $ 202.00
    Only 1 left!

    These MagnaFlow 59958 2.75" universal spun catalytic converters utilize the revolutionary new catalyst technology. Using new manufacturing technolo...

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