Super Gas Air Cleaner Kit - Black 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, A K&N filter behind a stainless steel wire mesh screen allow high volume air flow resulting in increased horsepower, CNC-Machined from billet aluminum with built-in crank case breathers, Made in the USA