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      01-11-2018, 10:57 AM   #8
aswy6
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Drives: 2016 BMW M3
Join Date: Jan 2017
Location: Austin, TX

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Quote:
Originally Posted by Properstyle View Post
sounds like an exhust leak that is rattling the heat shield or you have what happen to me. I actually cracked one of the plates in side the factory muffler. I had to re open the muffler and have it tack welded.
Are you talking about the rear clamp that seals the x-pipe to muffler? Also note that the sound is not there when I am standing still and revving the engine. It only comes when the car is under load. Feel like it comes right when vanos kicks in
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