Originally Posted by Kyle@STILLEN

Sorry if I gave the impression that you shouldn't do anything to your car. You absolutely should prepare the car with a cat-back exhaust, clutch and flywheel, suspension, brakes, and more. I just don't recommend installing headers (shorty's or long tube's) until we have a chance to test it. We saw on the VQ35 supercharger that you could lose up to a pound of boost by installing headers. They did improve efficiency though so you would make more horsepower. It was a weird trade off but basically in the end you did not make any more power on the dyno. However, everyone who drove with that setup acknowledged that there was a definite improvement in throttle response.

Basically...We just don't recommend installing headers until we have the opportunity to test them for you.



You are correct. Superchargers continue building boost all the way to RPM redline. However, we have seen where installing headers can drop up to a pound of boost because of the reduction in back pressure.