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 3.0Si Base 1975
BMW 3.0Si Base 1976
BMW 318i Base 1984
BMW 318i Base 1985
BMW 320i Base 1980
BMW 320i Base 1981
BMW 320i Base 1982
BMW 320i Base 1983
BMW 325e Base 1984
BMW 325e Base 1985
BMW 528e Base 1982
BMW 528e Base 1983
BMW 528e Base 1984
BMW 528e Base 1985
BMW 528i Base 1979
BMW 528i Base 1980
BMW 528i Base 1981
BMW 530i Base 1977
BMW 530i Base 1978
BMW 533i Base 1983
BMW 533i Base 1984
BMW 535i Base 1985
BMW 535i Base 1986
BMW 535i Base 1987
BMW 535is Base 1988
BMW 633CSi Base 1978
BMW 633CSi Base 1979
BMW 633CSi Base 1980
BMW 633CSi Base 1981
BMW 633CSi Base 1982
BMW 633CSi Base 1983
BMW 633CSi Base 1984
BMW 635CSi Base 1985
BMW 635CSi Base 1986
BMW 635CSi Base 1987
BMW 635CSi Base 1988
BMW 635CSi Base 1989
BMW 733i Base 1978
BMW 733i Base 1979
BMW 733i Base 1980
BMW 733i Base 1981
BMW 733i Base 1982
BMW 733i Base 1983
BMW 733i Base 1984
BMW 735i Base 1985
BMW 735i Base 1986
BMW 735i Base 1987
BMW M3 Base 1988
BMW M3 Base 1989
BMW M3 Base 1990
BMW M3 Base 1991