Description

K&N’s replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.
K&N’s replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. Our stock replacement air filters for street vehicles are covered by K&N’s Million-Mile Limited Warranty.

Fitment:
BMW545iBase2004
BMW545iBase2005
BMW550iBase2006
BMW550iBase2007
BMW550iBase2008
BMW550iBase2009
BMW550iBase2010
BMW645CiBase2004
BMW645CiBase2005
BMW650iBase2006
BMW650iBase2007
BMW650iBase2008
BMW650iBase2009
BMW650iBase2010