Originally Posted by Warrtalon
There's really no magic exhaust out there. If it's quiet, it will not be as powerful. If it's loud, it will probably be more powerful. Just be sure you don't spend $800-1000 to only get 15whp or something. You could leave the exhaust totally stock and just replace the stock cat with a test pipe and make 10-15whp for $80.
I like this idea. I might just do that!
On my old car I had Helix DP, Invidia Catback, no CAT. It was crazy loud! Really cool at first, but it got old especially on longer trips / highway driving. People could hear me blocks away. One of my friends had EVO2 exhaust that made the same power without all the noise. I just (bought my EVO and) moved to Seattle, and I don't know anyone with EVOs, so I can't really tell what different exhausts sound like.