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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 Comp. Only Turbo Down Y-Pipe. 2011-2014 F150 EcoBoost. Connects to OEM.

3" x 2-3/4"(OEM) SS Competition Only X-Pipe. 2011-2014 Mustang GT 5.0L.

3" Competition Only Header-Back Street Screamer Exhaust w/Polished Tips.

1-3/4" x 1-7/8" Stainless Headers & Comp. Only Exhaust. 2015-2020 Shelby GT350.

1-3/4" x 1-7/8" Stainless Headers & 3" Catted Exhaust. 2015-2020 Shelby GT350.

3" SS Comp. Only Downpipe. 2015-2023 Mustang EcoBoost. To Kooks Comp Exhaust.

3" SS Competition Only Y-Pipe. 2011-2014 F150 5.0L 4V. Connects to OEM.

3" SS Competition Only Connnection Pipes. 2015-2020 Mustang GT 5.0L.

2" Stainless Headers w/o Emissions Fittings. 1998-2002 Camaro/Firebird 5.7L.

1-7/8" Stainless Headers. 2004-2006 Pontiac GTO.

2" Stainless Headers. 2009-2015 Cadillac CTS-V.

1-7/8" Stainless Headers. 2009-2015 Cadillac CTS-V.

1-7/8" Stainless Headers. 2014-2017 Chevrolet SS.
1-7/8" Stainless Headers. 2008-2009 Pontiac G8.

1-7/8" Stainless Headers. 2003-2006 Chevrolet SSR.

1-3/4" Stainless Headers. 1993-1995 F150 Lightning 5.8L.

1-7/8" Stainless Headers. 1967-1969 Camaro. 1968-1974 Nova.

1-3/4" Stainless Headers. 1967-1969 Camaro. 1968-1974 Nova.

1-7/8" Stainless Headers. 2011-2014 F150 5.0L 4V.

1-3/4" Stainless Headers. 2011-2014 F150 5.0L 4V.

2" x 3" Stainless Headers. 2014-2015 Camaro Z28.

1-7/8" Stainless Headers. 2014-2015 Camaro Z28.

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

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