DC Sports Air Filters provide the best in Performance and Filtration. Each DC Sport filter is made with an oiled, cotton gauze filter element. That element is then carefully bonded to temperature-resistant, long-lasting urethane. The urethane base flange is designed to bolt directly to your intake tubing, eliminating the need for additional couplers. DC Sports Air Filters are available in various sizes. Whether you're replacing your existing filter or working on a custom project, we've got you covered. Every Air Filter includes a clamp.