Replacement filter for Kuryakyn Mach 2, Zombie, Alley Cat, Street Sleeper, and Crusher Maverick air cleaners.; Shields your engine from dust and debris Increases air flow Enhances engine acceleration and horsepower Round and slightly tapered with filter material across the end Compatible with Kuryakyn Mach 2, Zombie, Alley Cat, Street Sleeper, and Crusher Maverick air cleaners