quick view Add to Cart Kooks Headers Kooks 11-14 Ford Mustang GT 5.0L 4V 3in x 2 3/4in OEM Cat H Pipe Kooks HDR Req - 11413500 MSRP: $1,688.24 $1,519.99 Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best headers and complete exhaust systems for your street, race and off-road applications. We have... Add to Cart Add to Wish List Add to My Wish List Create New Wish List Compare