Quote:
Originally Posted by hotbmwfan
Did this to my 128 - it made a significant change (for the better) to the sound, especially under hard acceleration. It only takes 30 seconds to do this mod. By far the biggest bang for the buck mod you'll ever do.
|
mine is a 128 as well and i unplugged the hose in the trunk. i did not want to physically touch the tube and stuff was just a little weirded out by the zip tie method.
i did the trunk unplugging method to my previous 335 n drove for about 2 years with 0 issues from the car or even the dealer so i stuck with that method. I was just not aware the 128 had that as well.
sounds nice, raspy growl around 1-2500 rpm, and when you WOT you really hear the exhaust and no tjust engine noise.