Umm.. Around 7500 for exhaust? is taht ACS exhaust or bmw performance? sorry dno the diff between the 2!
is it just a back box or more? really interested in getting a louder exhaust for my 125.
my bro wanted to get the ACS backbox for his e90 330i and they quoted him 20k with installation :eyebulge:so that was a no go! i really thought the 135 was going to be louder! heard a 335 convertible with stock pipes and sounded ALOT louder????