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:
BMW 228i Base 2014
BMW 228i Base 2015
BMW 228i Base 2016
BMW 228i xDrive Base 2015
BMW 228i xDrive Base 2016
BMW 320i Base 2013
BMW 320i Base 2014
BMW 320i Base 2015
BMW 320i Base 2016
BMW 320i Base 2017
BMW 320i Base 2018
BMW 320i xDrive Base 2013
BMW 320i xDrive Base 2014
BMW 320i xDrive Base 2015
BMW 320i xDrive Base 2016
BMW 320i xDrive Base 2017
BMW 320i xDrive Base 2018
BMW 328i Base 2012
BMW 328i Base 2013
BMW 328i Base 2014
BMW 328i Base 2015
BMW 328i Base 2016
BMW 328i GT xDrive Base 2014
BMW 328i GT xDrive Base 2015
BMW 328i GT xDrive Base 2016
BMW 328i xDrive Base 2013
BMW 328i xDrive Base 2014
BMW 328i xDrive Base 2015
BMW 328i xDrive Base 2016
BMW 428i Base 2014
BMW 428i Base 2015
BMW 428i Base 2016
BMW 428i Gran Coupe Base 2015
BMW 428i Gran Coupe Base 2016
BMW 428i xDrive Base 2014
BMW 428i xDrive Base 2015
BMW 428i xDrive Base 2016
BMW 428i xDrive Gran Coupe Base 2015
BMW 428i xDrive Gran Coupe Base 2016