Vance & Hines VO2 Cage Fighter Air Cleaner Kit The VO2 Cage Fighter features a minimalistic yet functional design, boosting air flow directly to the filter element for optimal performance, while also enhancing the motorcycle's appearance with a distinct style. Features: Laser-Cut Cage Cover High Capacity Washable Air Filter Element Billet Dual Port Venturi with Large Inlet Backing Plate Available in Black Finish