Air cleaners include a K&N filter behind a stainless steel wire mesh screen to allow high-volume air flow, resulting in increased horsepower Screamin' Eagle/Ness upgrade kit adapts a Performance Machine designed faceplate to fit the Screamin' Eagle/Arlen Ness air cleaners Versatile design accepts interchangeable faceplates that are designed to match Performance Machine wheels Made in the U.S.A.. AIRCLEANER SPR GAS XL CHR