Uni Filter 04-05 Polaris ATP / 03-06 Magnum / 08-09 Trailblazer 330 / 01-09 Trailboss Air Filter - NU-8505ST

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.