Arlen Ness Sidekick Air Cleaner Kit For Harley The Sidekick Air Cleaner kit is another stand out kit from Arlen Ness. This kit combines billet aluminum, clear polycarbonate and an angled shape for top notch functionality and style. One thing to consider when choosing an intake is leg room and the Sidekick Air Cleaner has an angled shape for outstanding leg room. The kit features an innovative cover that allows you to see the internals work! Features: Patented hidden breather technology Eliminates oil blow be issues associated with M8 engines Maximum performance is achieved due to the radius air inlet providing uninterrupted air flow Patent pending oil catch in M8 backing plates guarantees no oil saturates the filter to restrict airflow Air filter element is hand made from black synthetic materials and wrapped in stainless steel mesh No oil needed Water resistant Washable and reusable Outer air cleaner cover is shaped at an angle for a one of a kind look and superb leg room Polycarbonate is coated to prevent oil adhesion and add UV protection for longevity