Unsurpassed in airflow, dirt stopping and overall performance Two-stage air filters come apart for maximum airflow and ultimate cleaning Most filters feature the Ultra Seal grease groove on the sealing surface Each fits in stock air box exactly like OEM filter Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely Made in the U.S.A. This item fits the following applications: 1981-1984 Honda CR125R 1984 Honda CR500R 1981-1984 Honda CR250R 1982-1983 Honda CR480R 1981 Honda CR450R