K & N Harley-Davidson Custom Air Filter Assembly RK-3909-1 Temperature Decals Polyester moisture performance material

Polyester moisture performance material

Provide more temperature stability than silicon

Strapless can design mounts without the use of strap bands around the silencer by using a top mounted bracket that's structurally integrated

The carbon fiber heel guards are designed to be functional as well as look great

K & N Harley-Davidson Custom Air Filter Assembly RK-3909-1 Temperature Decals Polyester moisture performance materialOversized black powder coated aluminum backing plate provides solid mounting Fits behind the OE air cleaner cover maintaining the factory appearance Replaces the stock air filter and cleaner backing plate assembly Washable, oversized K&N high flow air filter equals longer life Dyno tuned velocity stack directs airflow to engine Built in breathers replace external OE breathers Guaranteed increase in horsepower Does not include cover Made in the U. S. A.