Uni Filter 03-04 Arctic Cat 500 FIS Auto / 04 500 TBX / 03-05 500 TRV Air Filter - NU-8602ST

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