K&N Universal Clamp-On Air Filter (RU-4650)

K&N Universal Clamp-On Air Filter (RU-4650)K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably 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

Oil filter design provides for a high rate of oil flow

This replacement air filter and air box are covered by our famous K&N No-Hassle Lifetime Limited Warranty

Comes with a K&N embossed lid cap

The 3/4 inch diameter zinc tube is designed to push in and clamp directly on to metal or plastic tubing where venting is needed

Low Restriction

Adapt vent hoses to custom chrome air filter assemblies

K&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box

Replacement filter for RK-3909

The K&N AirCharger 63-1050 air intake system replaces the restrictive factory air filter and air intake housing in some Chevrolet Corvette Z06 models

Perfect for DIY racer applications

Engineered to improve throttle response and engine sound

The K&N RK-3941 High-Flow Air Intake System increases engine intake airflow and delivering more horsepower & torque to your Harley-Davidson® motorcycle