Kooks header and catted X-pipe kit for 2007–2010 Ford Mustang Shelby GT500 uses 1-3/4in primaries mated to a 3in catted X-pipe to improve exhaust scavenging and performance. Built from T304 stainless steel in the USA, Kooks handcrafts and dyno-tests their systems, supporting them with a limited lifetime warranty to the original purchaser. The kit is specified as a direct-fit exhaust upgrade for the listed Mustang applications.
Kooks 07-10 Ford Mustang Shelby GT500 1-3/4 x 3 Header & Green Catted X-Pipe Kit