FMF - Factory 4.1 Rct Exhaust


  • Complete system or slip-on muffler
  • RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output
  • Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power
  • FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage
  • Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
  • Compatible with stock header or FMF header
  • Meets AMA and FIM sound requirements
  • QuietCore 94 dB insert included
  • Spark arrestor included in muffler
  • System features titanium PowerBomb header and midpipe
  • Made in the U.S.A.