K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air-flow with excellent filtration. Features Designed to provide increased horsepower and acceleration Pleated cotton media provides a large filtration area offering low restriction, high-capacity and long service intervals Multiple layers of woven cotton gauze media offer excellent filtration Fits directly into OEM airbox with an application-specific sealing bead ensuring a precise fit No fuel management modifications are required to obtain increased performance Washable and reusable, most are pre-oiled and ready to ride Specifications Filter Material: Cotton Gauze Height: 11.063in (281mm) Inside Diameter: 2.5in (64mm) Outside Diameter: 5in (127mm) Washable: Yes Flange Inside Diameter: 2.469in (63mm) Flange Length: 0.563in (14mm) Filter Re-Oiling Amount: 4.64oz (137ml)