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.  K&N's OE (original equipment) replacement air filters generally add 1-4 horsepower. The secret to their success lies in the unique characteristics of the filter medium that was originally developed by K&N back in 1969 in the dust, sweat and tears of desert motocross racing.  The 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 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. 

A K&N Air Filter is made of 4 to 6 layers of cotton gauze sandwiched between two epoxy-coated aluminum wire screens.  The cotton is treated with a specially formulated grade of oil causing tackiness throughout the cotton’s microscopic strands.  The nature of the cotton allows high volumes of airflow, and when combined with the tackiness of the oil creates a powerful filtering media that ensures engine protection.  In contrast, most other media can not maintain the same balance of airflow and filtration throughout the filter's life without sacrificing one or the other.  With a K&N Air Filter, there is no sacrifice.

K&N uses independent laboratories & product test their prototypes in all types of racing venues such as Motorcross and Off Road Desert Racing to ensure that their products meet or exceed your high performance and high filtration demands.  K&N also conducts their own testing at their own state-of-the-art in-house testing laboratory and dyno. 

All K&N OE replacement air filters are street legal in all 50 states.