Uni Filter 18-19 Honda CRF 250 R / 17-20 CRF 450 R / 17-24 CRF 450 RX Air Filter - NU-4148ST

Uni Filter Dirt Bike Foam Air Filters have been unsurpassed in both engine protection and overall performance for over 50 years. Their unique two-stage design produces more horsepower and more torque than any other air filter.