Custom Air Filter

K & N ENGINEERING INC E-3984 Features:

The K& N replacement air filter for RK Series air cleaner assemblies is designed to increase horsepower and acceleration while providing excellent filtration. The air filter is washable and reusable and designed to be used as a replacement air filter for specific K& N RK Series air cleaner assemblies for Harley-Davidson motorcycles. The air filter is covered by the famous K& N Million-Mile Limited Warranty.