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K&N Air Filters Part #33-2292 Customer Reviews
12 Customer Reviews
Reviewed by Paul B (Port Saint Lucie, FL) Reviewed for a 2008 BMW Z4 — Feb 23, 2018 4:50 AM
K&N filters air to the proper degree. Paper filters restrict air flow by filtering particles too small to make any real difference. My mechanic says after cleaning don't bother to re-oil because it's almost impossible to replace the very light mist of oil of the original correctly. The multiple layers of cotton gauze are sufficient to protect your engine.
Reviewed by Stan S (Concord, CA) Reviewed for a 2004 BMW 5-Series — May 10, 2012 7:02 PM
Reviewed by Freddy J (Bowie, MD) Reviewed for a 2005 BMW 5-Series — Mar 23, 2011 7:31 PM
I purchased the squared K&N air filter on my wife daily driver and I thought I could tell instantly, so the first time she drove it she definitely noticed much improved throttle and gas results. My wife do not notice much about the car performance normally. KSo I say, You don't say!
Reviewed by Robb H (Woodbridge, VA) Reviewed for a 2007 BMW 5-Series — May 11, 2010 5:29 PM
I have always been a fan of the K&N be it filter chargers, col-air, or simple OEM replacements. This item has performed well in my 2007 BMW 530xi. I notices some gains in sport mode, and my "fuel range" seems to get me a bit more.
Reviewed by Christopher B (Budd Lake, NJ) Reviewed for a 1992 Lexus LS 400 — May 29, 2009 6:36 AM
Reviewed by Ray M (Norwalk, CA) Reviewed for a 2008 BMW 5-Series — Jan 26, 2009 7:21 AM
Reviewed by Nicolas G (Bethlehem, PA) Reviewed for a 2006 BMW 5-Series — Aug 21, 2008 12:15 PM
I have installed a K&N drop-in filter in all of my vehicles. I like the 50,000 mile service life and I think it improves fuel mileage a little. Throttle response is improved and especially noticeable in cars with manual transmissions. Installation is as easy as replacing the stock paper filter which is really dependant on your vehicle manufacturer's design of the airbox. On BMW's, the K&N is thinner and easier to install than the OEM paper filter!