- FMF is the leader in high performance quiet technology and FMF's 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!
- Developed over years of championship off-road racing
- Max Sound output 96dB; most models below 93dB
- Constructed from aircraft grade aluminum and high strength stainless steel
- Use with stock or FMF header
- Removable spark arrestor included
- Fourth generation of the original Q - high performance quiet technology
- Pounds lighter than stock
- Developed over years of championship off-road racing
- Twin stage core design for lower sound output and extended life of packing material
This item fits the following models:
Yamaha WR250F 2007 - 2014
Yamaha WR450F 2007 - 2011
Yamaha YZ250F 2006 - 2013
Yamaha YZ450F 2006 - 2009
Shipping weight: 7.37 lbs
Shipping size (L x W x H): 33.00 x 8.50 x 8.00 inches
Color: Natural
End Cap Style: Slash Cut
Style: Performance Replacement
Model: Q4 S/A
Material: SS/SS
Type: Slip-On Exhaust
Made in US
Sold as: EA
This item fits the following vehicles:
2014 Yamaha WR250F
2013 Yamaha WR250F
2012 Yamaha WR250F
2011 Yamaha WR250F
2010 Yamaha WR250F
2009 Yamaha WR250F
2008 Yamaha WR250F
2007 Yamaha WR250F
2011 Yamaha WR450F
2010 Yamaha WR450F
2009 Yamaha WR450F
2008 Yamaha WR450F
2007 Yamaha WR450F
2013 Yamaha YZ250F
2012 Yamaha YZ250F
2011 Yamaha YZ250F
2010 Yamaha YZ250F
2009 Yamaha YZ250F
2008 Yamaha YZ250F
2007 Yamaha YZ250F
2006 Yamaha YZ250F
2009 Yamaha YZ450F
2008 Yamaha YZ450F
2007 Yamaha YZ450F
2006 Yamaha YZ450F