K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. Features: Designed to provide increased horsepower and torque. Pleated media provides a large filtration are,a offering long service intervals. Multiple layers of woven cotton gauze media offer excellent filtration. Application-specific base seal and sealing bead. Made in the USA for over 40 years. Washable & reusable, pre-oiled and ready to ride!. Specifications Filter Material: Cotton Gauze Height: 4.312in (110mm) Inside Diameter: 3.75in (95mm) Outside Diameter: 5in (127mm) Washable: Yes Filter Re-Oiling Amount: 0.72oz (21ml)