The primary function of an air filter is to clean the air before it enters the engine. If this is true, why do we see so many engines, especially expensive competition engines, without air filters? The answer is airflow. An engine's power output is proportional to the volume of air it can ingest at any given rpm, assuming the fuel management system is capable of sustaining a near perfect air/fuel mixture ratio. The most minute restriction in the air induction system will cause an engine's optimum power output to drop.

K&N engineers have made vast improvements in performance, durability and serviceability by directly addressing these inherent compromises. In the early '60s, K&N developed an oil impregnated cotton air filter gauze which exceeds the minimum filtration standards while offering little restriction to air flow. As a result, the first K&N filter element was manufactured by sandwiching several layers of surgical gauze between two sheets of wire mesh. The medium was then pleated to reduce the filter's overall size and to increase its surface area. Finally the cotton gauze was oiled to enhance it's filtering capabilities. The original concept exists today and remains the basic component used in all of our automotive, industrial, marine and motorcycle air filters.

K&N's Universal Air Filters are designed and manufactured for a wide variety of applications. Regardless of the angle, offset diameter of the air intake, there is a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16" (1.5mm) to fit in-between sizes. K&N Universal air filters are available in round, tapered and oval designs, for just about any special application.

K & N High Performance Air & Oil Filter Pricing