Kooks header and catted X-pipe kit for 2007–2010 Ford Mustang Shelby GT500 features 1-7/8in primaries mated to a 3in catted X-pipe to improve exhaust scavenging and flow. Manufactured from T304 stainless steel, Kooks handcrafts these systems in the USA and subjects them to dyno and race testing. The company provides a limited lifetime warranty to the original purchaser and positions the kit as a direct-fit performance exhaust upgrade.
Kooks 07-10 Ford Mustang Shelby GT500 1-7/8 x 3 Header & Green Catted X-Pipe Kit