I know that straight flow mufflers are louder than the reverse, but in performance wise, which one allow better breathing?
My guess is straight flow mufflers will be better, but then all these stuff about back pressure, so...haha.
thanks.

 

twin loop ftw! A muffler alone wont give you that much horsepower anyway, so if you are just gonna get the muffler, i say twin loop is the way to go. It soudns and looks really nice. If you are gonna get catback, you dont havtaworry about the muffler anyway

 

a muffler alone wont give you any horsepower, if you want power, go catback, resonator, AND twinloop for stock like sound, get 2.25" piping, same power, less sound

 

Haha, finally I have enough money to get an exhaust...doing some research and stuff which one I should get.