Yamaha YFM 600 660 Grizzly 1998-2008 ATV Pre-Oiled Air Filter OCP-0872-AF0 Replaces OEM Stock Air Filter Inside Factory Airbox Pre-Oiled Dual Stage foam traps even the smallest dust and dirt particles Engineered for maximum horsepower and protection Yamaha YFM 600 660 Grizzly 1998-2008 Air Filter