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      02-04-2013, 03:36 AM   #3
Superfly_M3
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Drives: 2011 M3
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Wrapping is also used for hotter gasses to escape faster - less back pressure.
Sound pressure waves can be muffled, its the same idea as using a suppressor on a rifle. I realize that one or two layers of wrapping is not going to silence the exhaust. I just wanted to know if anyone has tried this. Seems like an inexpensive thing to try. Any idea how much the wrap costs?