Originally Posted by FlipKing
There can be a lot of difference but honestly what good is the header going to do with out a decent exhaust. Not muffler.
Your best bet with the 400 would be to put a decent suspension upgrade on the car. What good is a 12 sec daily driver if you have to slow down to 60 so make a turn?
That and motor mount. Your going to run into a problem when you have power and no way to transfer it to the ground...