Maximize your engine’s potential with a high flow air cleaner. The V2™ air cleaner is equipped with a velocity stack inside to provide the air your engine needs for maximum flow and velocity. With a flow rate of 428.95cfm @ 28” it is proven for performance.

Fits 2017-Later Milwaukee 8® Harley-Davidson® motorcycles.  Engineered to increase mid-range torque from stock to large cubic inch applications.  Designed to fit a stock H-D®, 62mm and 70mm HPi M8® throttle bodies, not compatible with SE® throttle bodies.  This unique design offers a custom HPi engraved, performance cone shape air filter for a race style look.  Also features custom external breather lines that will help eliminate oil misting.

Less is more with the Billet-Pro™ air cleaner that has all the basics with all the great looks at an affordable price.  Features including a flow rate of 350 CFM @ 28",  billet backing plate, a light weight carbon fiber cover and a quality air filter element complete this unit.

HPi's External Breather system is an add on feature manufactured to fit the HPi V2 and Billet-Pro air cleaner kits.  The design helps eliminate oil misting on bike and contamination of intake tract with a fully o-ringed system, billet stainless steel inserts and vacuum tube design.  Purpose built to retro fit other select air cleaner kits that use a flat mounting back plate.  Allows for a slight misalignment of air cleaner due to head/throttle body fitment issues. *Please note, not yet available for Sportster® units.  Fuel Injected models only.

Protect your air cleaner with a HPi water repellent Rain Sock made by Outerwears®. Available in two different sizes to fit our round, V2 and Billet-Pro air cleaner designs as well as the new Tunnel Ram, Elbow filter.  Black sock with white Horsepower logo in center.