Kuryakyn 9438 Black/Chrome Alley Cat Air Cleaner Cover Made to fit the Kuryakyn Street Sleeper II as well as many other aftermarket high flow air cleaners, this cover features a unique chrome mesh insert and "knock off" styled end cap for that retro look on your modern motorcycle. Note: Does not work with Ness Stage II Big Sucker or the original Kuryakyn Street Sleeper. Kuryakyn part number: 9438.