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 BR1002 The inner layer is a

The inner layer is a comfortable bend that wicks moisture from the skin while providing a breathable feel

Reusable Cotton

Side B is AN-06

Stainless steel stud

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 BR1002 The inner layer is aThe 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