Originally Posted by CalBear_335i
I'm not in so cal... but I have MS down pipes and stock exhaust and the exhaust has zero drone and sounds stock... if you want it to be quiet, it definitely will be....
I also have MS catless downpipes (rest of my exhaust is stock) and it most definitely does NOT sound like stock lol. It is fairly loud and really screams in the higher RPM range.
I have an E92, though, so it will be louder than an E90, naturally.