HIGH PERFORMANCE K&N AIR FILTERS, IMPROVE ACCELERATION AND INCREASE POWER! - Entirely Washable filter - The structure of the filtering material is protected by the aluminum mesh coated in epoxy resin, making the airflow direct - The originale filter is completely replaced da this, le improving engine performance - Resists moisture, and can be used even if completely wet, there is no need to replace it - Thanks to the Million Mile Limited Warranty once purchased it can be cleaned and lubricated repeatedly up to about 25 washes - Gauze soaked in oil to retain le impurities and debris outside the filter, thus increasing the filtering effectiveness - The edge structure is designed to ensure maximum sealing.