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      12-31-2011, 03:34 AM   #55
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Drives: 2011 328i sedan
Join Date: Sep 2011
Location: CA

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Originally Posted by DJ Apex View Post
so how much surface area of the stock euro drop in filters are?
What are its dimemsions? The flat drop-in is about 60 square inches by my estimation.

I was so close with the P4 but that stupid ridge (you know what I am talking about) in the airbox got in the way. The thing is, that ridge has no purpose in there that I could see. The P4 has more than 110 square inches of surface.
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