Arlen Ness Stage II Oval Air Cleaner Kit For Harley Arlen Ness Stage II Oval Air Cleaners boast an innovative design that emphasizes functionality and style. With an oval shape and open face filter, it ensures maximum airflow. It features a high-performance, pre-oiled black air filter with a pleated design on the top and perimeter, enabling air intake from every direction. This design significantly enhances performance by optimizing airflow. Features: Available in multiple finish options Low profile design for ample legroom Radius design backing plate engineered for horsepower & torque through unobstructed airflow Each kit includes: Backing Plate Assembly, Air Filter, Outer Cover Assembly, and necessary hardware Air filter is washable / re-useable