FMF Racing® Aluminum/Stainless Steel Q4 Slip-On Muffler

2010-2011 Yamaha YFZ450X 4x2 & 2009-2020 Yamaha YFZ450R 4x2

FMF is the leader in high performance quiet technology and our Q4 is the next evolution in off road exhaust. The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available. With the Q4 you don’t need to hear the power, just feel the power!

Features:

• Developed over years of championship off-road racing

• Twin-stage core design for lower sound output and extended life of packing material

• Comes standard with spark arrestor

• Fits stock and PowerBomb header

Finish:

• Aluminum/Stainless Steel

Fitment:

• 2010-2011 Yamaha YFZ450X 4x2

• 2009-2020 Yamaha YFZ450R 4x2