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      10-26-2011, 08:38 AM   #22
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Drives: 14 F30 AW MSport
Join Date: Apr 2010
Location: FL

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Originally Posted by nycbr View Post
based on the numbers above it seems the charcoal filter has very little effect on air flow. is the charcoal filter behind the air filter? Perhaps leave it in so it would block any oil from a K&N filter from fouling the MAF
Yes the charcoal is behind the regular air filer...
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