aFe Power Magnum FLOW Pro 5R Air Filter Element - 4 x 4-3/4" Base - 2-1/2 x 4-1/4" Top - 6" Tall - 3 x 4-3/4" Flange - Reusable Cotton - Blue RS00500309 1-1/4 in 19 Spline

1-1/4 in 19 Spline

05 and DOT approved

87 in Diameter

Chargers & Wiring

aFe Power Magnum FLOW Pro 5R Air Filter Element - 4 x 4-3/4" Base - 2-1/2 x 4-1/4" Top - 6" Tall - 3 x 4-3/4" Flange - Reusable Cotton - Blue RS00500309 1-1/4 in 19 SplineThe 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 aFes filter media options. 98. 6% Filtration Efficiency Advanced FLOW engineering (aFe Power) is a premier designer and manufacturer of automotive performance upgrade systems and