BMW 3-Series (E90 E92) Forum - View Single Post - It's official. K&N air filter is out. Now is it worth it?

phantom330 · 08-09-2007, 12:09 PM

any benefit to getting these? I had one on a past car and it didn't seem to do a thing, I've actually seen charts where a paper air filter outperformed a K&N a couple times on a dyno.

08-09-2007, 12:09 PM	#5
phantom330 Captain 18 Rep 892 Posts Drives: e93 335i Join Date: Aug 2005 Location: OH iTrader: (0)	any benefit to getting these? I had one on a past car and it didn't seem to do a thing, I've actually seen charts where a paper air filter outperformed a K&N a couple times on a dyno.
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