Large Five Layer Performance Air Filter:This 7-1/2” tall 360-degree radial flow air filter with a 4" flange features our pre-oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance. Our Pro 5R media provides your engine with the largest amount of high-flowing air, usually resulting in the highest power gains out of all our filter media options. This media is perfect for street and/or track use.
