The long awaited STILLEN 350Z and G35 Coupe and Sedan Headers are now available. After months of development work, these headers produce big increases in streetable power and torque on both Naturally Aspirated and Forced induction vehicles. The equal length design of the headers allows better and more efficient exhaust scavenging which contributes to the performance gains tested on the dyno, 11.5 hp at @ 6200 RPM and 18.5 ft-lb @ 3800 RPM at the flywheel. With STILLEN's 17 years of experience in designing and manufacturing Nissan performance parts, you should have complete confidence that every STILLEN product is of the highest quality and has under gone extensive research and design before production. These hand crafted shorty headers do not require the removal of the catalytic convertors and are available in two versions.