MBRP's ATV performance muffler. A true performance exhausts sound, maximum flow – while keeping similar characteristics of our sport and utility series, while delivering a clean and crisp sound.
Yamaha ATV; Slip-on system, w/ Sport Muffler. USFS Approved.
Chambered Muffler.
Fitment:
2000 Yamaha YFM400 Big Bear 2x4 Base
2000 Yamaha YFM400 Big Bear 4x4 Base
2001 Yamaha YFM400 Big Bear 2x4 Base
2001 Yamaha YFM400 Big Bear 4x4 Base
2002 Yamaha YFM400 Big Bear 2x4 Base
2002 Yamaha YFM400 Big Bear 4x4 Base
2003 Yamaha YFM400 Big Bear 2x4 Base
2003 Yamaha YFM400 Big Bear 4x4 Base
2004 Yamaha YFM400 Big Bear 2x4 Base
2004 Yamaha YFM400 Big Bear 4x4 Base
2005 Yamaha YFM400 Big Bear 4x4 Base
2006 Yamaha YFM400 Big Bear 4x4 Base
2007 Yamaha YFM400 Big Bear IRS 4x4 Base
2008 Yamaha YFM400 Big Bear IRS 4x4 Base
2009 Yamaha YFM400 Big Bear IRS 4x4 Base
2010 Yamaha YFM400 Big Bear IRS 4x4 Base