Areyourshop Air Filter Cleaner Fits For 1983-04 Honda XR250L XR 250 350 400 600 R 17213-MN1-670 FITMENT Fits Honda XR250 / XR250L 1991-1996, Fits Honda XR250R 1986-2004, Fits Honda XR350 / XR350R 1983-1986, Fits Honda XR400 / XR400R 1996-2004, Fits Honda XR600 / XR600R 1985-2000 This racing air filter has just two layers of cotton to provide even lower air restriction than our replacement air filter for street vehicles Air Filter Shape: Trapezoidal Filter Material: Cotton Gauze OEM Replacement Part Number: 17213-MN1-670 17213-KF0-000