Go with a universal from Dynomax or Magnaflow.

ok...i just cant imagine swapping power for sound unless you have a hole in your exaust, the louder the better...if you think yours is loud you should here mine, I love the sound..wooooaaaaaa..psssss

ok if you want the car to be quiet and at the same time you want performance, just get a muffler with a silencer. you just driving around you pop it in, if you go to a track, take it out