1-7/8" Stainless Headers. 2006-2009 Trailblazer SS.Kooks 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

These studs allow for an additional 1/4 inch of roll center correction compared to the previous socket head cap screws

The Trackspec solution resolves all of this by mounting the main hoop to the frame and B pillar

making it more difficult to put down consistent lap times

we locked in the final design

No more jam nuts

all of which are undesirable

ensuring you get the most travel

valving options are the same as the Crusader Series

but are not ideal for pushing a performance vehicle

2 EA New GM Upper Strut Mounts

Powder coated Satin Black for clean appearance and durability

5° negative beyond stock (OEM spring size limits inboard travel slightly compared to the generally smaller sized coilover springs)