1-7/8" Header and Catted Connection Kit. 1999-2004 Mustang Cobra 4.6L 4V. 2000 Pontiac Firebird Our over-sized spherical bearings are

Our over-sized spherical bearings are designed to withstand the rigors of street and track abuse

Or you can open up the hole ever so slightly and fit the nut/washer included and accommodate it

there are situations that require rebound forces in excess of what standard passive adjustable shock absorbers and struts can provide

Increases dense

1-7/8" Header and Catted Connection Kit. 1999-2004 Mustang Cobra 4.6L 4V. 2000 Pontiac Firebird Our over-sized spherical bearings areKooks 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