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Catalytic Converters & Accessories — G-Sport by GESi®

The NEW Advanced Series High Flow Catalytic Converters with Added Performance Without Compromise! Our latest updates to our universal line of G-Sport Catalytic Converters expands our proven Core technology to better support the growing high performance aftermarket. Our converter models target applications based on model year, vehicle horsepower and exhaust... Read More

G-Sport OBD2 Non-EPA Compliant Catalytic Converter - 2.500" Inlet/Outlet (10025)

SKU GSP10025
$ 192.50 - $ 192.50
$ 192.50
$ 192.50 - $ 192.50
$ 192.50
In stock

NOTE: These Non-EPA G-Sport catalytic converters offer a lighter loaded catalyst and therefore will reduce all regulated emissions to a lesser degr...

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G-Sport OBD2 Non-EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (10030)

SKU GSP10030
$ 199.01 - $ 199.01
$ 199.01
$ 199.01 - $ 199.01
$ 199.01
In stock

NOTE: These Non-EPA G-Sport catalytic converters offer a lighter loaded catalyst and therefore will reduce all regulated emissions to a lesser degr...

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G-Sport OBD2 DOC (Diesel Oxidation Catalyst) Non-EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (12030)

SKU GSP12030
$ 240.58 - $ 240.58
$ 240.58
$ 240.58 - $ 240.58
$ 240.58
In stock

NOTE: These Non-EPA G-Sport catalytic converters offer a lighter loaded catalyst and therefore will reduce all regulated emissions to a lesser degr...

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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 8 left!

G-Sport Gen1 HO EPA Compliant Catalytic Converter - 2.500" Inlet/Outlet (50022) The GEN1 Advanced series of Catalytic Converters is reinforced with...

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

SKU GSP50032
$ 626.15 - $ 626.15
$ 626.15
$ 626.15 - $ 626.15
$ 626.15
Only 7 left!

G-Sport Gen1 HO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (50032) The GEN1 Advanced series of Catalytic Converters is reinforced with...

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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
In stock

G-Sport Gen1 UHO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (85032) The GEN1 Advanced series of Catalytic Converters is reinforced wit...

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

SKU GSP50225
$ 614.10 - $ 614.10
$ 614.10
$ 614.10 - $ 614.10
$ 614.10
Only 5 left!

G-Sport Gen2 HO EPA Compliant Catalytic Converter - 2.500" Inlet/Outlet (50225) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE Typical catal...

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

SKU GSP50230
$ 626.15 - $ 626.15
$ 626.15
$ 626.15 - $ 626.15
$ 626.15
Only 5 left!

G-Sport Gen2 HO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (50230) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE Typical catal...

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

SKU GSP85230
$ 733.01 - $ 733.01
$ 733.01
$ 733.01 - $ 733.01
$ 733.01
Only 9 left!

G-Sport Gen2 UHO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (85230) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE Typical cata...

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

SKU GSP85240
$ 749.57 - $ 749.57
$ 749.57
$ 749.57 - $ 749.57
$ 749.57
Only 5 left!

G-Sport Gen2 UHO EPA Compliant Catalytic Converter - 4.000" Inlet/Outlet (85240) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE Typical cata...

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G-Sport Gen2 UHO EPA Compliant Catalytic Converter Core - 4.500" Body x 7.000" Long - Mid-Bed Series (24501)

SKU GSP24501
$ 928.15 - $ 928.15
$ 928.15
$ 928.15 - $ 928.15
$ 928.15
Only 5 left!

GESI G-Sport part number 24501 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-Sport GESI Gen2 EPA Compliant Catalytic ...

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G-Sport Gen2 UHO+ 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. G-Sport Gen2 UHO+ EPA Compliant Catalytic ...

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G-Sport Gen2 UHO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet - Mid-Bed Series (24531)

SKU GSP24531
$ 987.53 - $ 987.53
$ 987.53
$ 987.53 - $ 987.53
$ 987.53
Only 4 left!

G-Sport Gen2 UHO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet - Mid-Bed Series (24531) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORM...

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G-Sport Gen2 UHO+ EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet - Mid-Bed Series (25031)

SKU GSP25031
$ 1,163.79 - $ 1,163.79
$ 1,163.79
$ 1,163.79 - $ 1,163.79
$ 1,163.79
Only 2 left!

G-Sport GESI Gen2 EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet - 5.000" Body x 12.000" Long - Mid-Bed Series (25031) G-SPORT EMISSIONS ...

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

G-Sport Gen1 HO 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 2 left!

GESI G-Sport part number 25001 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-Sport Gen1 HO EPA Compliant Catalytic Co...

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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 Gen1 UHO 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 2 left!

GESI G-Sport part number 85002 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-Sport Gen1 UHO EPA Compliant Catalytic C...

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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 2 left!

GESI G-Sport part number 50200 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-Sport Gen2 EPA Compliant Catalytic Conve...

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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 5 left!

GESI G-Sport part number 85200 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-Sport Gen2 EPA Compliant Catalytic Conve...

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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 4 left!

GESI G-Sport part number 85500 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-Sport Gen2 EPA Compliant Catalytic Conve...

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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. G-Sport Gen2 EPA Compliant Catalytic Conve...

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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 12 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 10 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 12 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
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 5.000" OD Body Catalytic Converters - 3.000" Inlet/Outlet (95530) - Ace Race Parts

G-Sport Transition Cone For 6.000" OD Body Catalytic Converters - 3.000" Inlet/Outlet (96030)

SKU GSP96030
$ 67.82 - $ 67.82
$ 67.82
$ 67.82 - $ 67.82
$ 67.82
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 Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport OBD2 Non-EPA Compliant Catalytic Converter 6 Pack - 2.500" Inlet/Outlet (610025)

SKU GSP610025
$ 1,097.00 - $ 1,097.00
$ 1,097.00
$ 1,097.00 - $ 1,097.00
$ 1,097.00
In stock

NOTE: These Non-EPA G-Sport catalytic converters offer a lighter loaded catalyst and therefore will reduce all regulated emissions to a lesser degr...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport OBD2 Non-EPA Compliant Catalytic Converter 6 Pack - 3.000" Inlet/Outlet (610030)

SKU GSP610030
$ 1,134.00 - $ 1,134.00
$ 1,134.00
$ 1,134.00 - $ 1,134.00
$ 1,134.00
In stock

NOTE: These Non-EPA G-Sport catalytic converters offer a lighter loaded catalyst and therefore will reduce all regulated emissions to a lesser degr...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen1 HO EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long (650002)

SKU GSP650002
$ 3,425.00 - $ 3,425.00
$ 3,425.00
$ 3,425.00 - $ 3,425.00
$ 3,425.00
In stock

GESI G-Sport part number 625001 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-Sport Gen1 HO EPA Compliant Catalytic C...

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G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen1 UHO EPA Compliant Catalytic Converter Core 6 Pack - 4.500" Body x 4.000" Long (685002)

SKU GSP685002
$ 3,423.00 - $ 3,423.00
$ 3,423.00
$ 3,423.00 - $ 3,423.00
$ 3,423.00
In stock

GESI G-Sport part number 85002 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-Sport Gen1 UHO EPA Compliant Catalytic C...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen1 HO EPA Compliant Catalytic Converter Core 6 Pack - 2.500" Inlet/Outlet (650022)

SKU GSP650022
$ 3,499.00 - $ 3,499.00
$ 3,499.00
$ 3,499.00 - $ 3,499.00
$ 3,499.00
In stock

G-Sport Gen1 HO EPA Compliant Catalytic Converter - 2.500" Inlet/Outlet (50022) The GEN1 Advanced series of Catalytic Converters is reinforced with...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen1 HO EPA Compliant Catalytic Converter 6 Pack - 3.000" Inlet/Outlet (650032)

SKU GSP685032
$ 3,499.00 - $ 3,499.00
$ 3,499.00
$ 3,499.00 - $ 3,499.00
$ 3,499.00
In stock

G-Sport Gen1 HO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (50032) The GEN1 Advanced series of Catalytic Converters is reinforced with...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen1 UHO EPA Compliant Catalytic Converter 6 Pack - 3.000" Inlet/Outlet (685032)

SKU GSP685032
$ 3,836.00 - $ 3,836.00
$ 3,836.00
$ 3,836.00 - $ 3,836.00
$ 3,836.00
In stock

G-Sport Gen1 UHO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (85032) The GEN1 Advanced series of Catalytic Converters is reinforced wit...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen2 EPA Compliant Catalytic Converter Core 6 Pack- 4.000" Body x 4.000" Long (650200)

SKU GSP650200
$ 3,425.00 - $ 3,425.00
$ 3,425.00
$ 3,425.00 - $ 3,425.00
$ 3,425.00
In stock

GESI G-Sport part number 50200 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-Sport Gen2 EPA Compliant Catalytic Conve...

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G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen2 EPA Compliant Catalytic Converter Core 6 Pack - 4.500" Body x 4.000" Long (685200)

SKU GSP685200
$ 3,834.00 - $ 3,834.00
$ 3,834.00
$ 3,834.00 - $ 3,834.00
$ 3,834.00
In stock

GESI G-Sport part number 85200 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR P...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen2 HO EPA Compliant Catalytic Converter 6 Pack- 2.500" Inlet/Outlet (650225)

SKU GSP650225
$ 3,499.00 - $ 3,499.00
$ 3,499.00
$ 3,499.00 - $ 3,499.00
$ 3,499.00
In stock

G-Sport Gen2 HO EPA Compliant Catalytic Converter - 2.500" Inlet/Outlet (50225) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE Typical catal...

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G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen2 HO EPA Compliant Catalytic Converter 6 Pack - 3.000" Inlet/Outlet (650230)

SKU GSP650230
$ 3,381.00 - $ 3,381.00
$ 3,381.00
$ 3,381.00 - $ 3,381.00
$ 3,381.00
In stock

G-Sport Gen2 HO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (50230) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE Typical catal...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen2 UHO EPA Compliant Catalytic Converter 6 Pack - 3.000" Inlet/Outlet (685230)

SKU GSP685230
$ 3,958.00 - $ 3,958.00
$ 3,958.00
$ 3,958.00 - $ 3,958.00
$ 3,958.00
In stock

G-Sport Gen2 UHO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (85230) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE Typical cata...

View full details
G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen2 UHO EPA Compliant Catalytic Converter 6 Pack - 3.000" Inlet/Outlet (685230)

SKU GSP685230
$ 3,333.26 - $ 3,333.26
$ 3,333.26
$ 3,333.26 - $ 3,333.26
$ 3,333.26
In stock

G-Sport Gen2 UHO EPA Compliant Catalytic Converter 6 Pack - 3.000" Inlet/Outlet (685230) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE Typi...

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G-Sport GESI Gen1 EPA Compliant Catalytic Converter Core 6 Pack - 4.000" Body x 4.000" Long - 300 CPSI (650002) - Ace Race Parts

G-Sport Gen2 UHO EPA Compliant Catalytic Converter 6 Pack - 4.000" Inlet/Outlet (685240)

SKU GSP685240
$ 4,049.00 - $ 4,049.00
$ 4,049.00
$ 4,049.00 - $ 4,049.00
$ 4,049.00
In stock

G-Sport Gen2 UHO EPA Compliant Catalytic Converter - 4.000" Inlet/Outlet (85240) G-SPORT EMISSIONS SYSTEMS - DESIGNED FOR PERFORMANCE Typical cata...

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