Compatible with all OEM diameter factory and aftermarket (lowering) springs for S550
Trackspec has once again developed the best bolt in 4 point roll bar on the market
* Left hand threads between the base and the body ensures that the shock/strut doesn’t come apart when adjusting the ride height
All components plated for maximum corrosion resistance and long life
while allowing smooth articulation
2" x 3-1/2" Stainless Headers. 2-3/4" Diag. Bolt Pattern. 351 SBF in a Fox Body. 1999 pontiac firebird Compatible with all OEM diameterKooks 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