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      10-25-2011, 06:34 PM   #11
jc5988
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Drives: 2010 328i 6MT Sport Pkg
Join Date: Aug 2011
Location: SOCAL

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this should take care of your concern, K&N really dont give any meaningful gain. but consider its price and re-usability, its worth the money in my opinion.

http://www.e90post.com/forums/showthread.php?t=132028
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