K&N Air Filters

K&N Air Filters Engineering, of Riverside, California, is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. From humble beginnings as a family run business over 35 years ago, K&N Air Filter Engineering, now a truly global company with offices in the U.K. and the Netherlands, continues to exist as a family owned business with an enthusiast mindset and a direct connection with motor sports that carries over throughout all levels of management and manufacturing.

Since 1969 K&N Air Filter Engineering has been designing, manufacturing, and enhancing High-Flow Air Filters for the automotive and motorcycle enthusiast interested in maximizing horsepower and acceleration.  They not only have more applications than any other manufacturer of similar product, they invented the High-Flow category and the High-Flow Technology that supports it.

The K&N FilterCharger air filter is designed to achieve high, virtually unrestricted air flow while maintaining filtration levels critical to ensure long engine life.  Our automotive OE (original equipment) replacement K&N air filters generally add 1-4 horsepower.  Our high flow cotton gauze air filter is washable, reusable and built to last for the life of an automotive or motorcycle 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.

Handmade in the USA and in the United Kingdom using only the finest materials, K&N Air Filters (OE Replacement) are washable and reusable.  Regardless of what you've heard, it's almost impossible to wash your Air Filter too much.  Inside our testing laboratory, we have washed and re-oiled one Air Filter more than 100 times and it still performs up to specification.  

• Car filters, truck filters, marine filters.
• K&N cold air intakes