Direct Replacement Slip-On W/Utility Muffler For 99 Yamaha YFM MBRPPerformance Sound In A Simple Package Directly replace your OEM muffler with an MBRP Utility Series exhaust, and hear the voice your ATV or SXS should have had from the factory. Fitment: 1997 1999 Yamaha YFM 350 FWB Big Bear 1996 1999 Yamaha YFM 350U Big Bear 2X4 1993 1999 Yamaha YFM 400FW Kodiak 1987 1997 Yamaha YFM 350FW Big Bear Moto 4 4X4 1999 Yamaha YFM 350 4FH Big Bear Hunting 4X4 Product Info: ATV 7000 Series Utility Muffler Black Coated Slip