FMF FACTORY 4.1 RCT MUFFLER FACT4.1RCT ALUM















MFPN:045593

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  • 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
  • Meet AMA and FIM sound requirements
  • QuietCore 94db insert included
  • Spark arrestor included in muffler
  • Available in natural titanium or blue anodized finish with titanium or carbon fiber end caps
  • Made in the U.S.A.


  • Name Option
    COLOR  Natural 
    END CAP STYLE  Cone 
    FINISH  Natural 
    MADE IN THE U.S.A.  Yes 
    MATERIAL  Aluminum,Stainless Steel 
    MODEL  Factory 4.1 RCT 
    SHAPE  Oval 
    SPECIFIC APPLICATION  Yes 
    STYLE  Slip-on 
    TYPE  Muffler 





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