Arlen Ness Slot Track Inverted Series Air Cleaner Kit For Harley Elevate your motorcycle's performance with the Arlen Ness Slot Track Inverted Series Air Cleaner Kit. This assembly features a precision-made billet air filter cover with an inverted design to function as a velocity stack, enhancing airflow. With its patented internal breather system, ventilation is channeled discreetly through the backing plate, negating the need for any external lines or fittings. Engineered with a water-resistant, pleated, stainless steel jacketed filter that draws in air from every angle, the product ensures maximum intake efficiency and does not require 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