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      01-03-2011, 10:21 PM   #532
Das.Euro
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Drives: 07 328XI- Montego Blue
Join Date: Oct 2010
Location: NNJ

iTrader: (3)

This is how it works. You cut the pipe from the resonator back and replace with a single pipe with tips welded/ screwed on the piping. Thats option 1, now option 2 is replacing the oem muffler with an aftermarket muffler to sound better/louder . Depends really what your looking for .