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Kooks COMPETition only products are built for use in motorsports competition only. these products are not intended for street use.
Competition Only

3" SS Connection-Back X-Pipe Exhaust w/SS Tips. 2015-2017 Mustang GT 5.0L.

3" SS Competition Only Downpipes. 2016-2018 Cadillac ATS-V.

3" SS Competition Only Header-Back Exhaust w/SS Tips. 2016-2020 Cadillac CTS-V.

3" Stainless Catted Y-Pipe. 2014-2018 GM 1/2 Ton Truck 6.2L.

3" Stainless Competition Only Y-Pipe. 2014-2018 GM 1/2 Ton Truck 6.2L.

3" SS Competition Only Y-Pipe. 2009-2018 Dodge/Ram 1500 5.7L. Connects to OEM.

1-5/8" Stainless Headers. 1999-2004 F150 Lightning 5.4L 2V.

1-5/8" Stainless Headers. 2003-2011 Crown Victoria 4.6L 2V

1-5/8" Stainless Headers. 2003-2004 Mercury Marauder 4.6L 4V

2" Stainless Headers w/o Emissions Fittings. 1997-2004 Corvette.

1-7/8" Stainless Headers. w/Emissions Fittings. 2001-2004 Corvette.

1-7/8" Stainless Headers. w/Emissions Fittings. 1997-2000 Corvette.

3" x 3" SS Competition Only X-Pipe. 1999-2004 Mustang. (Does Not Connect to OEM)

3" x 2-1/2" SS Competition Only X-Pipe. 1999-2004 Mustang. (Connects to OEM)

3" x 2-1/2" SS Competition Only X-Pipe. 2005-2010 Mustang GT 4.6L 3V.

2-1/2" SS Competition Only X-Pipe. 2005-2010 Mustang GT 4.6L 3V.

1-7/8" Stainless Headers with Adapter Plate Kit. 302 SBF in a Fox Body.

3" SS Catted OEM Connection Pipes. 2005-2006 Pontiac GTO.

3" SS Competition Only OEM Connection Pipes. 2005-2006 Pontiac GTO.

3" SS Comp. Only Connection Pipes. 2001-2006 GM Truck 6.0L. For OEM Dual Exh.

3" x 2-3/4"(OEM) SS Competition Only H-Pipe. 2011-2014 Shelby GT500.

3" Catted X-Pipe. 1997-2004 Corvette. Does NOT Connect to OEM Exhaust.

3" x 2-1/2" SS Catted X-Pipe. 1997-2004 Corvette. Connects to OEM Exhaust.

3" Competition Only X-Pipe. 1997-2004 Corvette. Does NOT Connect to OEM Exhaust.