Same top quality Moose Racing filters now available factory pre-oiled. High technology machine pre-oils filters to perfection while leaving no excess oil to rob horsepower, no dry spots endangering your engine. Oiled with top quality Moose Racing super seal filter oil that has been abused and recommended in prolonged testing. Save the hassle and get it done better than you can at home for only a dollar! (Over the cost of regular Moose Racing air filters). Includes re-sealable filter bag. Made in the USA.