High-quality, high performance. Super-clean design features all-CNC-machined billet aluminum construction throughout. Equipped with a genuine K&N 4 inch diameter high-flow filter. Has the exclusive Joker baffle plate internal crankcase breathing system held all together with high-strength 12-point mounting bolts. Improves leg clearance over the stock air cleaner assembly due to its compact design. Available in your choice of black anodized, clear anodized (silver) and chrome plated finishes. Made in the U.S.A.