WR250R WR250X FMF Q4 Hex Slip-On Muffler
WR250R WR250X FMF Q4 Hex Slip-On Muffler

** OUT OF STOCK - This product is no longer in stock at our warehouse.

As of spring 2024, FMF has discontinued their mufflers and header pipes for the 2008-2020 Yamaha WR250R/X. Yoshimura is about the last company making an exhaust system for the Yamaha WR250R. See our Yamaha WR250R Performance Guide for all the details on what you need to get your WR250R/X running properly and increase power, torque and overall ride-ability.

Home > Dual Sport > Yamaha WR250X/R Parts > FMF Q4 Hex Slip-On Muffler

The FMF Q4 exhaust is the most popular exhaust system for the Yamaha WR250R and WR250X. Run the Q4 Slip-On muffler with your stock header, or pair it with the FMF Powerbomb or MegaBomb header, to really wake up the engine on your bike, as well as give it a much better sound.

With riding areas threatened more every day, FMF takes seriously the expression ‘less sound equals more ground’ and with the Q4, FMF has designed a slip-on exhaust that leads in high performance quiet technology. Using the best materials, the Q4 uses intricate chambers and baffles to improve flow while still dampening sound. Roost more, ride more and offend less with the FMF Q4!

Fitment: 2008-2020 Yamaha WR250R / WR250X

Standard Features:
  • Constructed from aircraft grade aluminum and high strength stainless steel
  • Use with stock or FMF header
  • Removable USFS spark arrestor included
  • Pounds lighter than stock
  • Twin stage core design for lower sound output and extended life of packing material
  • Max Sound output 96dB; most models below 93dB
  • Made in USA!

    Package Deals:
  • WR250R/X Performance Exhaust Bundle

  • Sound Demo Video:

    Older Video Reviews:

    WR250R WR250X FMF Q4 Hex Slip-On Muffler

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