One thing whats better the x pipe or just each pipe straight back.

 

DO NOT get 3" piping unless you are planning to go F/I. The worst mistake. The Biggest I would recommend on a N/A is 2.25 or 2.5 at most. I have a 3" and I have lost a substantial amount of low end grunt. Power loss that you can feel physically is a sudstantial amount number wise. The 3.5 is a torquey motor, putting a 3" will make your car feel like an RSX. You have to have your car above 4500 rpm to constantly pull hard. With the stock piping, you pull way much harder.

 

don't forget the weight savings though...oem weights like a pig...lol