K&N Replacement Air Filter 4in ID x 5.25in OD x 2in Height

K&N custom air cleaners are designed for use on older motorcycles. With proper carburetor calibration, these custom air cleaners can increase horsepower on your bike. Each custom air cleaner comes with a K&N high-flow air filter. These air cleaners are perfect for many applications, such as racing or off-roading. This custom air cleaner has a 2.625 in (67 mm) inlet. The backing-plate is predrilled. Included is a bright chrome dome-shaped cover.