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Amazon.com: K&N Universal Clamp-On Air Intake Filter: High Performance Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 5.5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001RD : Automotive
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K&N Universal Clamp-On Air Filter: High Performance, Premium, Replacement Engine Filter: Flange Diameter: 1.9375 In,
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