Kooks header and catted H-pipe systems for select Mustang and Boss Edition applications are handcrafted T304 stainless designs tuned for maximum power and dyno-tested performance. These systems use stepped tube diameters and catted connection pipes to improve exhaust flow. Kooks manufactures in the USA and backs products to the original purchaser per their limited-lifetime policy.
Kooks 12-13 Ford Mustang 302 Boss Edition 1-3/4 x 3 Header & Catted H-Pipe Kit