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 Filters 33-2476 Air Filter Fits 12-20 Sonic | eBay
K&N 16-in W x 25-in L x 1-in Washable Pleated Air Filter in the Air Filters department at Lowes.com
K&N Drop-In Filter N55
K&N Air Filter Cleaning Kit 99-5050, Aerosol Filter Cleaner and Oil Kit; Restores Engine Air Filter Performance; Service Kit - Walmart.com