BMW 3-Series (E90 E92) Forum - View Single Post - exhaust break-in, myth or reality

hotrod2448 · 10-06-2008, 11:26 AM

The tone will change a little over time as the packing in the muffler breaks down a bit. It's not going to be huge difference though and I wouldn't expect it to help the droning.

10-06-2008, 11:26 AM	#2
hotrod2448 grand poobah 254 Rep 2,253 Posts Drives: F80 M3, F10 535i Join Date: Dec 2006 Location: Charlotte, NC iTrader: (0) Garage List 2011 335d [0.00]	The tone will change a little over time as the packing in the muffler breaks down a bit. It's not going to be huge difference though and I wouldn't expect it to help the droning.
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