Hiflofiltro HFF3022 Dual Stage Racing Foam Air Filter Fits: Suzuki 400 LT-Z 03-13, 400 Eiger/400 King Quad 02-13, 500 Vinson (all) 02-07; Arctic Cat DVX 400 03-08 Competition off-road air filters manufactured in the Netherlands using a special dual-layer foam, formulated for maximum filtration and optimum air flow for improved power Coarse open-pore foam catches airborne dirt, grime and sand while the fine open-pore inner foam acts as a second filter to trap the smallest particles Top quality materials and superior construction allow the filter to be used over and over again without any loss of performance