Thread: OEM Exhaust mod [details, pics and vids]
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      11-11-2011, 12:07 PM   #5
BMWJ
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Drives: 2011 E92 M3
Join Date: Oct 2011
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this is what I asked in the other thread. it's no different than putting straight pipes from the resonators back. you sound deadening is from 2 sets of cats and resonators only.
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