FMF Offroad Powercore 4 Exhaust POWERCORE 4 MUFFLER Slip-On Muffler - 044222

Constructed of stainless steel with a lightweight allow can

Space age internal packing for maximum packing life

Hi-Flo modular end cap

Internal shape of core uses Hi-Flo technology

Enhanced sonic evacuation provides for higher flow and increased power

Includes removable spark arrestor

Applications:

2003-2006 Yamaha WR450F - -

2003-2005 Yamaha YZ450F