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      06-29-2013, 02:56 PM   #22
SmokeShank
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Drives: 328xi M-Sport
Join Date: Jun 2013
Location: Columbus, OH

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Aftermarket filter on the N20/26 IMO is a waste of money.

BMS found no power gains over the stock air box setup. Maybe if sound is changed then sure... but I'm not spending money on something that has minimal gains and is covered under factory maintenance.
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