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      10-10-2012, 10:47 AM   #8
New Member

Drives: 2008 M3
Join Date: Oct 2012
Location: Pittsburgh

Posts: 18
iTrader: (0)

Since I got a few responses what about a k & n drop in filter - I have an early e90 - have read a few post that it has a more restrictive coal lined filter...any opinions