aFe Power Magnum FLOW Pro 5R Air Filter Element - 8-1/4 x 4-1/4" Base - 7 x 3" Top - 5-1/2" Tall - 7 x 3" Flange - Reusable Cotton - Blue - Universal

The Pro 5R is our most performance-oriented media available, outperforming virtually all other cotton gauze media on the market today. It provides your engine with the largest amount of high-flowing air, usually resulting in the highest horsepower and torque gains out of all aFe’s filter media options. 98.6% Filtration Efficiency