K&N Performance Air Intake System (57-3100) K&N Fitting is very straightforward

Fitting is very straightforward

we cannot always guarantee that everyone’s application will be compatible with a valve that vents the charge air into the atmosphere

Twin-Cam and Sportster motorcycle models increase power by eliminating the restrictive stock OE air cleaner and replacing it with a K&N High-Flow Air Filter and a chrome finish mandrel bent aluminum intake tube

resulting in improved response and better control

K&N Performance Air Intake System (57-3100) K&N Fitting is very straightforwardA high density polyethylene (HDPE) rotationally molded tube helps increase the volume of airflow to your engine, and provides a guaranteed increase in horsepower and torque. These systems are paired with a washable, reusable High Flow Air Filter featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect