3" SS GREEN Catted Connection Pipes. 2001-2006 GM Truck 6.0L. For OEM Dual Exh. 1996-pontiac-firebird-esi1593369 Or you can open up

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

and the needle and seat combination can be changed out

Camber adjustment is about 2

Caster has two settings

Reduces under hood pressure delta to reduce front end lift and increase net vehicle downforce

3" SS GREEN Catted Connection Pipes. 2001-2006 GM Truck 6.0L. For OEM Dual Exh. 1996-pontiac-firebird-esi1593369 Or you can open upKooks 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