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Old 08-10-2012, 01:45 PM   #23
Registered User
Join Date: Nov 2011
Location: texas
Posts: 172
My Ride: 2013 335is 6mt
one update- do NOT get an oiled filter replacement for the stock airbox. oil is bad for MAF's, and my car ran poorly with that filter in place. i'm back to a completely stock intake. may consider a BMW performance box, but my testing shows the stock airbox is pretty well designed as-is.
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