Thread: 528i N20 custom dual exhaust and AFE air filter (using any stock/aftermarket exhaust)
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      01-05-2014, 09:11 PM   #9
Dan1416
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Drives: 2013 528 x-drive
Join Date: Sep 2013
Location: North NJ

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From the clips they sound pretty similar. Is there any droning with either setup? Sounds good
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