3" x 2-3/4"(OEM) GREEN Catted X-Pipe. Must be used with Kooks Headers. 2000 Pontiac Firebird installation is actually pretty easy

installation is actually pretty easy

Includes A426GB-400 Coilover Kit and 7995-102 Spanner Wrench and Thrust Washer Kit

thereby relieving unneccesary stress on the piston rod and seals

Meets and exceeds NASA and SCCA time trial 4 point bolt in requirements

This is especially important for radial tire cars which like to hit the tire hard (lots of anti-squat) but also want a ride height as low as possible

3" x 2-3/4"(OEM) GREEN Catted X-Pipe. Must be used with Kooks Headers. 2000 Pontiac Firebird installation is actually pretty easyKooks 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