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.

Vehicle Fitment

Years	Make	Model	Trim
1971	BMW	3.0csi	Base
1971, 1975	BMW	3.0si	Base
1990–1993	Porsche	911	Carrera 2
1989–1993	Porsche	911	Carrera 4
1993	Porsche	911	RS America
1978–1983	Porsche	911	SC
1991–1992	Porsche	911	Turbo
1993	Porsche	911	Turbo 3.6
1977, 1986–1989	Porsche	911	Turbo Carrera
1978–1979	Porsche	930	Turbo