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      09-23-2012, 04:22 PM   #3
Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

Posts: 2,681
iTrader: (4)

it has been done. Can't remember the thread name. apparently the member who did it said it changed the exhaust note. Toned it down, but that could be subjective. I am going to sort of do the same with a stock muffler. M3 quads. One of us will find out sooner or later.
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