Arlen Ness 15-Spoke Inverted Series Air Cleaner Kit For Harley Elevate your motorcycle's performance with the Arlen Ness 15-Spoke Inverted Series Air Cleaner Kit. This premium kit, designed with a forged billet air filter cover and a CNC-machined inverted top, significantly improves airflow, mimicking the function of a velocity stack. Its innovative hidden breather technology ensures a clean aesthetic by eliminating the need for external hoses or hardware, with breathers exiting the backing plate. The kit features a durable, water-resistant filter enveloped in a stainless steel jacket, with a pleated design that enhances air intake from all directions, eliminating the necessity of a rain sock. Features: Billet aluminum backing plate Integrated crankcase breather for a clean look Radius air inlet for unobstructed airflow Synthetic filter element never needs oiling