50 Years of Race-Winning Experience in Every Header

Kooks custom and race series headers for popular GM model cars yield the largest horsepower gains of any header company to date. The flanges are laser cut 3/8 in. thick stainless steel to prevent warping with each port hand grinded to ensure they are perfectly smooth so there is no exhaust constriction. Every header collector has a Kooks scavenging spike in it to ensure maximum flow. All gaskets, bolts and oxygen sensor extensions are included with your kit.