Maximize your engine’s potential with one of HPi’s high flow air cleaners. The V2™ air cleaner is equipped with a velocity stack to provide the air your engine needs for maximum flow and velocity and a flow rate of 428.95cfm @ 28”. The Billet-Pro air cleaner is a smaller designed air cleaner for rider’s seeking more leg room and a flow rate of 350cfm @ 28”. Both are proven for performance and lack nothing in appearance with state-of-the-art designs. Also add on an external breather system to eliminate oil mist and a custom rain sock for weather protection.