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12-19-2016, 11:21 AM
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#221
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Major 
Drives: 2008 E92 M3 Alpine White
Join Date: Aug 2010
Location: NJ - NY
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Quote:
Originally Posted by Mvy
I stuffed a piece of rigid packing foam into the hole. It reduced the noise quite a bit (by maybe 15 decibels as best I can tell). No clear impact to performance at all in a short grocery run. I imagine with a blower forcing air in and an open airbox this wont mess up anything airflow wise. Thanks Bill!
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Pictures?
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