Amazon.com: K&N Universal Clamp-On Air Intake Filter: High Performance Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Height: 5.5 In, Flange Length: 1.125 In, Shape: Round Tapered, RG-1001RD : Automotive
Service kit for 525i and 528i from 4/84 up with: air filter insert , oil filter + sealing, fuel filter, 6x spark plug, 2x belt (generator and power steering), seal ring for
Amazon.com: K&N Universal Clamp-On Air Intake Filter: High Performance, Premium, Washable, Replacement Air Filter: Flange Diameter: 5 In, Filter Height: 5.5 In, Flange Length: 1 In, Shape: Round Tapered, RU-5147 : Automotive