Air Filter Cleaner For KT SX EXC XCW XC SXS SXF SMR 125 150 250 300 350 450 500 GenericFEATURES: High Air Flow with Excellent Filtration. Environmentally Friendly. Designed to Increase Horsepower and Acceleration. Washable and Reusable. They offer bigger air flow, with almost 99% filtering efficiency. Lasts up to 50,000 miles before cleaning is required depending on driving conditions. Economical, a Air Filter Will Last the Life of Your Automobile, Motorcycle, or ATV. This is a aftermarket part,not orignal part. Their drop in design