mcapinha
Active Member
I've been running my 2.5 DSE without the exhaust heat shield because my mechanic managed to break it and I never got around to replacing it (long story, please don't ask).
Since the BMW engineers decided that it was necessary, I'd like to know if there's any known side effects to running it this way?
Since the BMW engineers decided that it was necessary, I'd like to know if there's any known side effects to running it this way?