Originally Posted by Warrtalon

DP+HFC won't make a big difference because of the cat restriction. If you do a DP and test pipe, you will gain significant HP. Just as an example, I dyno'd 282/259 with a cat-back, then added a Megan DP/TP and dyno'd 294/269, so I gained 12whp/10wtq. I don't think you'll gain as much with a HFC, plus it costs more.

Originally Posted by vone750

megan dp is the best bang for the buck..