K&N Air Intakes for Harley-Davidson Add Power and Style for a Custom Ride

K&N air intakes for Harley-Davidson motorcycles add horsepower, torque, and horsepower

The Street Hammer is a full intake that replaces the restrictive stock unit. In addition to a serious boost in performance, the Street Hammer high flow air intake is designed to protect your V-twin from dust, dirt, and other ravages of the road.

The chrome Street Hammer intake adds style and performance to your Harley

The estimated performance increases when running the Street Hammer are impressive. As an example, K&N’s rigorous in-house testing showed an estimated increase of almost 4.5 horsepower in an otherwise stock 2016 883cc Sportster.

Shown here in the black version, the Street Hammer intake is a ready-to-install kit

Of course, the Street Hammer incorporates K&N’s legendary oil-impregnated, cotton gauze filter media in the round air cleaner element. Those multiple pleats keep the clean air flowing wash after wash with the fully reusable filter.

The X versions of the Street Hammer intake incorporate an extra-tall filter element

The Street Hammer is available for a range of Sportster®, Dyna®, Softail®, and touring models. The intake is offered in chrome with the RK-3933, RK-3944, RK-3945, RK-3946, and RK-3954. It is also available capped in a stealthy black with the RK-3933B, RK-3944B, RK-3945B, RK-3946B, and RK-3954B.

If your V-twin needs more air because of performance modifications or a larger build, you can opt for the chrome RK-3933X or RK-3946X or the black RK-3933XB or RK-3946XB. The X versions of the Street Hammer incorporate an extra-tall air filter for an increased volume of airflow.

Check K&N’s simple-to-navigate online application search tool to find the perfect Street Hammer intake for your Harley.