WR250R WR250X FMF PowerCore 4 Hex Slip-On Muffler
WR250R WR250X FMF PowerCore 4 Hex Slip-On Muffler

We no longer carry this product, but you can order it and other exhaust systems from one of our trusted partners/affiliates. If you make a purchase from them, we do receive a small portion of the sale, at no extra cost to you.

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  • Home > Dual Sport > Yamaha WR250X/R Parts > FMF PowerCore 4 Slip-On Muffler

    The FMF PowerCore 4 Hex slip-on is one of the most affordable mufflers available for the Yamaha WR250R and WR250X. Run the PowerCore 4 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.

    SOUND: Please note that the PowerCore 4 muffler is slightly louder than FMF's Q4 muffler. If you are looking for something quieter, check out the FMF Q4 Slip-On Muffler.

    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
  • FMF Part #044436
  • Made in USA!

    Package Deals:
  • WR250R/X Performance Exhaust Bundle

  • Video Reviews:

    WR250R WR250X FMF PowerCore 4 Hex Slip-On Muffler

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