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FMF Q4 Slip-On Exhaust Yamaha YZ250F / YZ450F / WR250F / WR450F

FMF is the leader in high performance, quiet exhaust technology and the Q4 Slip-On muffler is the perfect choice when looking to decrease sound levels without sacrificing horsepower. The Q4 exhaust employs intricate chambers, baffles and proprietary multi-stage packing material, making it one of the best performing quiet mufflers available. With the Q4, FMF has proven you don’t need to settle for a plugged up, horsepower-robbing muffler to keep noise levels down.

Features:

  • Developed over years of championship off-road racing
  • Max Sound output 96 dB; most models below 93 dB
  • Constructed from aircraft grade aluminum
  • Removable spark arrestor included
  • Can be used with stock or FMF Header
  • Weight: 5.9 lbs
  • 100% Made in the USA
Made in the USA
Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style Stainless Steel/Aluminum/Stainless Steel RevZilla Item #894436 Store Sku MFR. Product #044232 AvailabilityIn Stock: Ships within 24 hours

This product DOES NOT FIT your 2010 Harley Davidson Softail Cross Bones Springer FLSTSB

This Product Fits
Yamaha
WR250F 2007-2013
WR450F 2007, 2008, 2009, 2010, 2011
YZ250F 2006, 2007, 2008, 2009
YZ450F 2006, 2007, 2008, 2009
This item is also available for 12 different vehicles. View All Models
Honda
CRF150R 2007-2026
CRF150R Expert 2012-2026
XR650L 1993-2025
Kawasaki
KLX400SR 2003-2004
Suzuki
DR650SE 1997-2020
DR-Z400 2006-2007
DR-Z400S 2000-2024
DR-Z400SM 2005-2024
Yamaha
WR250F 2003-2006
WR450F 2003-2006
YZ250F 2003-2005
YZ450F 2003-2005

FMF Q4 Slip-On Exhaust Yamaha YZ250F / YZ450F 2006-2009 / WR250F 2007-2013 / WR450F 2007-2011 Instructions

Product Description
Part Numbers
Fitment
Instructions
15 Customer Reviews
15 4.5/5
12 Questions & 4 Answers
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