Stock Style BBC Header Flange - 3/8" Thick 304 Stainless -2" Primaries 1992-pontiac-firebird-esi4307584 Compatible with all OEM diameter

Compatible with all OEM diameter factory and aftermarket (lowering) springs for S550

For added strength and badass aesthetics

These have a maximum

CrusaderTM rebound valving range may be easily revalved by the user

Applications:  2016+ Chevrolet Camaro 2013-2019 Cadillac ATS/ATS-V

Stock Style BBC Header Flange - 3/8" Thick 304 Stainless -2" Primaries 1992-pontiac-firebird-esi4307584 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