K&N 1-fl oz Air Filter Cleaner in the Car Additives & Fluids department at Lowes.com
Amazon.com: K&N Motorcycle Air Filter: Clamp On Pod Filters (4 Pack) Chrome Top with 54mm Flange Fits older Motorcycle Models CB, KZ, GS, GPZ, XS Pod Filters RC-0984 , Black : Automotive
K&N OE Direct Fit Stock Replacement Air Filter | Havoc Offroad