721018 Rick''s, ''Good Guys 3 Porthole'' air cleaner assembly. Black

With a clear ''see through'' plexiglass window allows you to view inside the air cleaner. Housing and base plate are CNC-machined from 7075 billet aluminum with a black anodized finish. This high performance air cleaner assembly; with K&N filter element; can offer significant performance increases when compared to the max flow of the original air cleaner. The integrated engine breather directs the oil back directly into the intake track; preventing messy oil leakage from the air filter housing. Includes mounting instructions. Note: This air cleaner comes standard with a black intake ring; but optional colored intake rings are separately available in a Polished (721022) finish or in a Red (721023); Orange (721021) or Gold (721020) anodized finish to color-match the intake track with other Rick''s Motorcycles accessories.