A K&N reusable oil filter by Pure Power will last the lifetime of your vehicle under normal vehicle operating conditions. The filter housing, bypass valve and call plate are CNC machined from Billet 6061 T6 Aluminum. The mechanical filtration is accomplished with a dual woven T 304 stainless steel micro-screen that provides excellent engine protection while providing a substantial increase in oil flow when compared to standard disposable oil filters. U.S. Pat. No. 7,413,889 and U.S. Pat. Pending