K&N Replacement Air Filter (HA-1818)

K&N Replacement Air Filter (HA-1818)K&N's high flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. Designed to provide increased horsepower and torque Pleated media provides a large filtration area offering long service intervals Multiple layers of

Free-flowing carbon fiber intake tube

K&N Flow Control Clips and Replacement Filters are designed for added support around the outside of Flow Control System assemblies

The K&N 57S-9501 Performance Airbox is an air intake system that replaces the restrictive factory air filter and air intake assembly

All metal housing

reusable High-Flow Air Filter™ paired with a CAD-designed high airflow intake tube

The resulting smooth

The K&N E-4400 replacement air filter is constructed using an oil-free synthetic media

K&N replacement air filters can go up to 50

The extra surface area of these open-air air filters provides even more airflow at lower restriction than a K&N O/E replacement filter which is limited to the size of the factory air box

The K&N E-4550 is a synthetic

They provide outstanding filtration and can be used for custom or racing needs

Compatible with gasoline and diesel