K&N Engineering 3.75 Inch OD 2.438 Inch ID 4 inch H Round Tapered Universal Air Filer - SN-2530

If you require good clean air and lots of it, K&N Clamp-on filters are your best bet for improved performance! Universal in style, K&N snowmobile filters replace the existing airbox and OEM stock filter. K&N manufactures hundreds of sizes, shapes and lengths to fit virtually any application.