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      07-25-2015, 10:53 AM   #4
Helmsman
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Drives: 2011 AW E90 M3 ZCP
Join Date: Mar 2014
Location: Stockholm, Sweden

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The OEM (even "2 pipe") IS definitely much louder than stock mate. Very happy with this myself and do not miss more sound. I'd start in this end with the possibility to increase in second step with test pipes.
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