Arlen Ness 600-185 Performance Air Filter Kit - Stage II - Chrome

• Increase performance and add style to the engine
• Features a performance filter with a pleated top to take in air from the sides and top of the filter for maximum airflow
• Filter cover, spacers and clamps are all CNC machined from billet aluminum
• Performance air filter is made from high-flow black pre-oiled cotton media
• Increased filter height specially designed to increase airflow without reducing leg room
• Over 50% more air filter surface area than paper filters found in factory oval air cleaners
• Dyno testing has shown up to a 3 horsepower increase after installing the upgrade filter on factory displacement M8 engines; up to 5hp gain for 124” big bore M8 engines

• One performance filter
• One billet air cleaner cover
• Four billet spacers
• Four clamps
• Four mounting bolts

Does not include backing plate. Requires OEM/Harley-Davidson Ventilator® oval backing plate.