What's the best exhaust for some real HP gains? :dribble:

Cat back? <_<

How about bolting on some headers? ;)


Anybody got some HP numbers to show? :type:

I wouldnt bother unless your adding headers, cat back gains have been from 5-10 engine. But adding headers can give some impressive gains.

We have lots of exhaust info on our website. Plus a sound clip and dyno results on our media page.

AP Exhaust (http://www.arrowheadperformance.com/engine_performance.htm)