11-14-2005, 02:59 PM
You can get decent gains with a shorty header and hi-flow cat, with the least emissions hassles. However, for any real power gains the only way to go is a full length race header. It all really depends on what your overall goals are, and how much noise you can handle (race headers can lead to quite a noise increase).
I bought a red car, because everyone knows red is the fastest.