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🇺🇸 Closed June 29 – July 5. Order by 2:00 PM PT today to ship before the holiday. Back July 6. Happy 4th!
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Mufflers, Resonators & Catalytic Converters

Ace Race Parts stocks and distributes a wide variety of mufflers, resonators, and high flow catalytic converters from brands like G-Sport, Vibrant Performance, and Ace Race Parts. Mufflers, muffler resonators, and catalytic converters are an essential part of an exhaust system and are offered in conjunction with the Ace Race... Read More
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 7 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 3 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 Sold out

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
Out of stock

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 4 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 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
$ 3,695.00 - $ 3,695.00
$ 3,695.00
$ 3,695.00 - $ 3,695.00
$ 3,695.00
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...

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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- 4.000" 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 HO 2.500" Inlet/Outlet Gen1 EPA Compliant Catalytic Converter 400 CPSI (50225) - Ace Race Parts
Sold out

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
Out of stock

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 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...

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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- 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 Gen2 UHO EPA Compliant Catalytic Converter - 3.000" Inlet/Outlet (85230) - Ace Race Parts

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 - 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!

WHAT IS A "MID-BED" CATALYTIC CONVERTER? Mid-Bed is a specific type of Gen2 catalytic converter that contains two separate catalyst bricks within a...

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

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 4 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 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
Only 2 left!

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
$ 3,795.00 - $ 3,795.00
$ 3,795.00
$ 3,795.00 - $ 3,795.00
$ 3,795.00
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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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. WHAT IS A "MID-BED" CATALYTIC CONVERTER? ...

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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 1 left!

WHAT IS A "MID-BED" CATALYTIC CONVERTER? Mid-Bed is a specific type of Gen2 catalytic converter that contains two separate catalyst bricks within ...

View full details

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 6 left!

GESI G-Sport part number 25001 is ONLY the Catalytic Core. G-Sport Transition Cones are sold separately. WHAT IS A "MID-BED" CATALYTIC CONVERTER? ...

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