EC-Approved Stealth Air Cleaner KitIncreased filter area, combined with an air horn-like radiused inlet and unique S&S stinger cone allow smoother, faster air flow Kits do not include an air cleaner cover Can be run without a cover or for a sleeper look use and OEM-type 99-later Big Twin air cleaner cover For a little more style and high performance look, S&S offers a number of good-looking covers Kit includes back plate, filter element, top cover, hardware, and instructions Cover sold separately