BMW 5-Series E12 (1975-1981) - Basic Maintenance - Filters & Belts

BMW 5-Series E12 (1975-1981) Filters & Belts - Air Filters - K&N

Air Filters

Clogged air filters can reduce air flow into the injection system, causing reduced power and inefficiency in the fuel injection system. Replacing a dirty air filter can sometimes do wonders for your engine.

K&N Replacement Air Filters

Since 1969 K&N Engineering has been designing, manufacturing, and enhancing High-Flow Air Filters for the automotive and motorcycle enthusiast interested in maximizing horsepower and acceleration. Their automotive OE (original equipment) replacement air filters generally add 1-4 horsepower. Their high flow cotton gauze air filter is washable, reusable and built to last for the life of an automotive engine. K&N air filters consist of four to six sheets of cotton gauze layered between two sheets of aluminum wire mesh. This media is then pleated and oiled to enhance its filtering capabilities and overall performance. K&N Air Filters were created for an environment requiring maximum horsepower and enhanced acceleration in addition to protection from the dirt and dust of off-road racing. The result is an air filter that allows dramatically more air into an engine, is washable and reusable, and will protect your engine for the life of your vehicle.