The rebound valving has a progressive curve that is strictly determined via orifice control
* By not offering non-adjustable or single adjustable
There are various force curves available for compression and rebound based on the vehicle and use of said vehicle
we have been working on a new patented valving that we are excited to release
there are situations that require rebound forces in excess of what standard passive adjustable shock absorbers and struts can provide
1-3/4" Stainless Headers w/Emissions Fittings. 2001-2004 Corvette. 1982-ford-f-150 The rebound valving has aKooks 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