K&N HIGH FLOW DIRECT FIT AIR FILTER -- Provides 1 to 4 h.p. power gain; 96 to 99 percent filtration efficiency; 1.125 in. height, 11 in. outside length, 6.563 in. outside width; Multiple interwoven layers of surgical cotton gauze; Oiled element; Panel style; This Air Filter is designed to increase horsepower and acceleration while providing excellent filtration; It is custom designed to fit into an existing factory air box and features a drop-in design which means adding performance is simple; Provides high air flow with excellent filtration; Economical and environment friendly; Works with OEM vehicle electronics; Will last the life of your vehicle; Washable and reusable; Lasts up to 50,000-mile before cleaning is required depending on drive condition; 50-state legal; With K&N's limited million mile warranty.