no way man. All that work, just to have it suck all the power out of your car. Seriouslly, even though everyone on the entire planet thanks a bigger exhaust helps increase power, dont listen to them. You want the smallest exhaust possible, like one from a Prius or something. Swapping out that exhaust is a lot of work, might take you days and thousands of dollars. Do it right the first time.
Yes put it on. Everyone know that our stock exhaust is very restrictive. You will see hp gain. Maybe not a lot but you will see it. It is only bad if you use to large of an exhaust.
I'm pretty sure that back pressure hurts performance period unless your talking about the uppipe. The part that would cause you to actually lose power would be to mess with the step on the exhaust ports on the head.
