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      05-26-2010, 10:24 AM   #11
supraking
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Drives: 128i Coupe 6MT
Join Date: Apr 2009
Location: Montreal

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2009 128i Coupe  [0.00]
While I see the general preference in this thread is to the aFe, I'll share my experience with the K&N. Went in easily and had no problems with seal, leaks, etc. Just replaced the stock filter.

A lot of people recommend K&N as well. I think we're sort of comparing apples to apples, and no matter which filter you put in, you're going to get the same (minimal) performance gain.

I actually installed a full CAI so if anyone wants my K&N filter, it's yours for $40 (used for about 150 miles).
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