Emgo oil filters are proven, high quality filters that meet all warranty performance requirements of OEM parts. Endurance racing: the true test of man and machine. The endurance of the machine depends on products that will stand up to the high speeds and hour after hour high rpm running at the track. Emgo filters are race proven by the "winningest" team in US endurance history: Team Suzuki Endurance. all Emgo oil filters are guaranteed against defects in workmanship and materials. Emgo's New Microglass Oil Filter stops almost 100 percent of the harmful particles inside your engine. Regular filter media traps particles over 20 microns, while Microglass media traps particles of 10 or more microns in size dead in their tracks. While offering superior filtration and oil flow Emgo's dyno testing has shown a horsepower gain. Measures 1.732 inch OD by 2.134 inch height.