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      12-13-2013, 08:01 PM   #20
toppim5
toppim5
Australia
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Drives: 2012 F10 M5
Join Date: Jan 2013
Location: Melbourne Australia

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I agree, pulled mine out the day after I installed Gruppe. I think they could have retarded the sound more by enclosing it better. I hated the sound. Had no trouble selling it though. Go figure.
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