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 riveted badge or machined-in badge with the Vance & Hines logo. All include a K&N Xstream high-flow and washable air filter element to insure your bike will never run out of breath. - Extracts the maximum performance from any machine - With K&N Xstream high-flow air filter element - CNC-machined billet cover secured with race-spec ARP hardware - High-capacity, deep-pleated, & washable air filter element - Includes backing plate, venturi and breather assemblies - Force™ Velocity Stack for a strong increase in power