Quote Originally Posted by TheSaint View Post
i was happily suprised with the performance of the 2.5" stainless system on my D15b7
the only thing i dont like is that its a little loud

like i said - i would put more emphasis into header selection than exhaust
seems that on every car i have had headers make a much more dramatic effect
yeap, 2.5inch on my d-series as well.... nothing wrong with it, though low end torque suffers a lil bit, top end feels much better, if you have a quality muffler, sound isnt so much a issue imo, on my car running a jdm cannon axle back, sounds great, quite as on idle, and when WOT, loud as fuk lol, can hear it for miles....

N/A cars are all about headers, i dunno where ppl say exhaust effects the output, but from my understanding, the header design is what makes or breaks a N/A car, i think best example is F1, they run NO exhaust system, but rather a intricate and very complex exhaust headers, R&D is the key to any successful N/A build