Black wrinkle finish. The Onyx is designed with a fully open filtered front to maximize airflow. The Vance & Hines VO2 air cleaner delivers improved engine performance with that all important touch of class and style. With large inlet backing plate and billet venturi entrance for smooth air flow. CNC machined billet cover with machined-in badge with the Vance & Hines logo. With ARP hardware. All include a K&N Xstream high-flow and washable air filter element to insure your bike will never run out of breath.