Nissan 5.6L V8 Header Flange - 3/8" Thick Stainless. Ports for 1-7/8" Primaries. 1999 Pontiac Firebird You have to tell us

You have to tell us what you have and pick the appropriate option below under "Spring Perch"

Upper rear seat must be removed

The spherical bearing used in the Vorshlag camber plate is the largest used in any 6th Gen camber plate on the market

3rd Gen F-Bodies: The Torque box locations on both 82-92 and 93-02 F bodies are similar in shape and the same in physical location

/ bronze piston seal

Nissan 5.6L V8 Header Flange - 3/8" Thick Stainless. Ports for 1-7/8" Primaries. 1999 Pontiac Firebird You have to tell usKooks 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 won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud