High Air Flow with Excellent Filtration Designed to Increase Horsepower and Acceleration Washable and Reusable Will NOT Void Vehicle Warranty Lasts up to 50,000 miles before cleaning is required depending on driving conditions 10 Year / Million Mile Limited Warranty Emissions Legal in all 50 US States. Economical, a K&N Air Filter Will Last the Life of Your Vehicle Works with Original Equipment Manufacturer Vehicle Electronics Environmentally Friendly, K&N Reusable Air Filters Reduce the Volume of Disposable Air Filters that end up in the Nation's Landfills.