K&N Universal Air Filter 3 11/16in Flange x 8 3/4 x 5 1/2in Base x 6 3/8 x 3 3/16in Top x 7in Height - RP-5285 fits_2006-2011`Ford`Focus Constructed Of 409 Stainless Steel

Constructed Of 409 Stainless Steel

5 grams — noticeably more substantial than the factory unit

chromoly hub is heat-treated for strength and durability

1981 Ford Mustang 2

Dual sealed housing blocks heat and contaminants

K&N Universal Air Filter 3 11/16in Flange x 8 3/4 x 5 1/2in Base x 6 3/8 x 3 3/16in Top x 7in Height - RP-5285 fits_2006-2011`Ford`Focus Constructed Of 409 Stainless SteelThe RP 5285 Universal Air Filter is constructed from an oiled cotton filter media. It comes with a K&N embossed carbon fiber top and carbon fiber base for strength and durability. The carbon fiber element adds to the light weight design and gives this filter a smooth glass like finish. The RP 5285 is a clamp on filter that has an inside flange diameter of 3 11 16 inches. The base is 8 3 4 inches by 5 1 2 inches and the filter height is 7 inches.