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.
Fits
BMW 545i Base 2004
BMW 545i Base 2005
BMW 550i Base 2006
BMW 550i Base 2007
BMW 550i Base 2008
BMW 550i Base 2009
BMW 550i Base 2010
BMW 645Ci Base 2004
BMW 645Ci Base 2005
BMW 650i Base 2006
BMW 650i Base 2007
BMW 650i Base 2008
BMW 650i Base 2009
BMW 650i Base 2010