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      11-04-2011, 06:06 PM   #218
BoogeyMan'sBMW
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Quote:
Originally Posted by branmace View Post
That is the charcoal filter. You might want to sand down the edges of the box, where you cut out the charcoal filter (if they are rough). If you do that, i would recommend to pull out the Mass Air Flow (MAF) sensor, the thing that is inside the air box pipe opening on your picture behind the charcoal filter you cut out, so you don't dust it. Wipe/wash out the air box afterwords, air/blow dry it, clean the MAF with CRC MAF cleaner (from you local AutoZone, Checkers, O'Rileys etc), a K&N filter is always nice p/n 33-2332, assemble back together and enjoy the difference.
so i will be replacing this filter:
http://www.e90post.com/forums/attach...1&d=1149463043

with the K&N filter correct?
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