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Kooks header and catted X-pipe kit for 2011–2014 Ford Mustang GT pairs 1-3/4in primary headers with a 3in catted X-pipe to replace the factory exhaust components. Kooks emphasizes handcrafted manufacturing in the USA using T304 stainless steel, with systems dyno and race tested to maximize power. The company backs products with a limited lifetime warranty to the original purchaser and positions these kits as high-quality, race-proven exhaust components.
Kooks 11-14 Ford Mustang GT 1-3/4 x 3 Header & Catted X-Pipe Kit
