WASHABLE, REUSABLE AND DESIGNED TO LAST
K&N engine air filters are designed to be washable, reusable and last the life of your vehicle. The premium filter design incorporates multiple layers of patented cotton gauze media and a specially engineered oil, originally designed for the demands of the racetrack and now custom designed for your vehicle. Tested, proven and trusted for over 50 years, millions of drivers trust K&N air filters to help protect their engines from premature wear. Use our simple vehicle selector to view filters compatible with your year, make and model.
RESISTANT FOR LIFE
Unlike disposable filters that must be replaced frequently, K&N® High-Flow Air Filters™ are washable, reusable and designed to last the life of your vehicle. Feel confident in your purchase with a “No Hassle” Lifetime Limited Warranty.
DESIGNED
FOR PERFORMANCE
Originally designed for high performance on the racetrack, now custom designed for your vehicle’s make and model. K&N® air filters are tested on a SuperFlow flow bench to ensure increased airflow over a stock filter. See test data for many K&N filters on individual product pages.
PROTECTS YOUR ENGINE
K&N's next-generation filter features thousands of microscopic cotton fibers, and an innovative layered, oiled cotton media design helps capture dirt and protect your engine from contaminants. Each filter design is tested in an ISO 5011 laboratory to ensure excellent filtration efficiency for exceptional engine protection.
PROVEN ON THE TRACK
K&N’s performance cotton filter design has been tested and perfected over the past five decades, in everything from NASCAR race cars to top-of-the-line fuel dragsters to commuter vehicles. Millions of drivers continue to trust K&N air filters for their proven performance and American-made quality.
REDUCES WASTE
Over 100 million disposable air filters and their packaging waste end up in landfills each year. Choosing a washable, reusable product that will last the life of your vehicle helps reduce unnecessary waste.
QUICK AND EASY INSTALLATION
Designed to easily fit into your factory air box as easily as any other air filter. Typically installs in less than five minutes with no tools required.
Compatible with:
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BMW 325Is 2.5L L6 F/I 1992 - 1995
BMW 325Ci 2.5L L6 F/I 1993 - 1995
BMW 328Ic 2.8L L6 F/I 1998 - 1998
BMW 328Ci 2.8L L6 F/I 1997 - 1998
BMW M3 3.2L L6 F/I 1995 - 1999
BMW M Coupe 3.2L L6 F/I 1998 - 1999
BMW 328Is 2.8L L6 F/I 1996 - 1999
BMW 328i 2.8L L6 F/I 1995 - 1999
BMW 325I 2.5L L6 F/I 1991 - 1999
BMW 323Is 2.5L L6 F/I 1998 - 1999
BMW 323I 2.5L L6 F/I 1995 - 1999
BMW 323Ci 2.5L L6 F/I 1998 - 1999
BMW 320I 2.0L L6 F/I 1990 - 1999
BMW Z3 2.8L L6 F/I 1997 - 2000
BMW M3 3.0L L6 F/I 1992 - 2000
BMW 528I 2.8L L6 F/I 1995 - 2000
BMW 523I 2.5L L6 F/I 1995 - 2000
BMW 323Ti 2.5L L6 F/I 1997 - 2000
BMW 728Il 2.8L L6 F/I 1996 - 2001
BMW 728I 2.8L L6 F/I 1994 - 2001
BMW Z3 2.5L L6 F/I 1999 - 2002
BMW Z3 2.0L L6 F/I 1999 - 2003
BMW Z3 2.2L L6 F/I 2000 - 2003
BMW Z3 3.0L L6 F/I 2000 - 2003
BMW Z3 3.2L L6 F/I 1997 - 2003
BMW 530i 3.0L L6 F/I 2000 - 2004
BMW 525I 2.5L L6 F/I 2000 - 2004
BMW 520I 2.0L L6 F/I 1996 - 2004
BMW 520I 2.2L L6 F/I 2000 - 2004
BMW Z4 3.0L L6 F/I 2003 - 2005
BMW X3 2.5L L6 F/I 2004 - 2005
BMW Z4 2.2L L6 F/I 2003 - 2006
BMW Z4 2.5L L6 F/I 2003 - 2006