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Kooks header and green catted H-pipe kit for 2011–2014 Ford Mustang Shelby GT500 uses 1-3/4 x 3 headers and a green catted H-pipe to reduce backpressure and refine exhaust pulse tuning. Designed as a direct-fit replacement, the assembly targets improved midrange torque and scavenging for spirited street or track use.
Kooks 11-14 Ford Mustang Shelby GT500 1-3/4 x 3 Header & Green Catted H-Pipe Kit
