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      10-26-2011, 06:31 AM   #21
Second Lieutenant
Drives: 2008 TiAg 328xi
Join Date: Jun 2011
Location: nu yawk

Posts: 239
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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
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