For 99-04 Mustang, must be used with Kooks Long Tube Headers.
Required for Kooks Long Tube Headers
Improves Exhaust Flow and Sound
Raspy Race Car Growl
High Flow Catalytic Converters Included
2.5" Mandrel-Bent 304 Stainless Steel Tubing
Fits - GT, Bullitt, Mach 1 and Cobra
Increase Performance. Add even more horsepower and torque to the rear wheels of your - 4.6L Mustang with a Kooks Catted Shorty X-pipe. A Kooks Catted X-pipe features high flow race catalytic converters to increase overall performance. This Kooks 2.5" X-pipe is specifically designed to be used with Kooks Long Tube Headers.