K&N Universal Air Filter 4in ID x 3.5 Tall (RU-2510)
Amazon.com: K&N Universal Clamp-On Air Intake Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 6 In, Flange Length: 1.75 In, Shape: Round Tapered, RE-0850 : Automotive
Universal Clamp-On Air Filter
Amazon.com: K&N Universal Off-Road Air Intake: High Performance, Premium, Guaranteed to Increase Horsepower: Filter Shape: Air Intake, 54-6853 : Automotive