FMF FACTORY 4.1 MUFFLER AN S/S 4.1 YZ















MFPN:044235

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  • Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps
  • The lightest mufflers available
  • Superior power and performance - horsepower improved throughout the rpm range
  • Feature exclusive proprietary Chamber Core technology
  • Factory Forward Engineering centralizes mass, improves handling
  • Made from premium quality American materials
  • Customize with performance tuning inserts and spark arrestor module
  • Meet AMA sound requirements on most models; inserts available for others


    • Name Option
    CATEGORY  4-Stroke 
    END CAP STYLE  Euro 
    FINISH  Anodized 
    MADE IN THE U.S.A.  Yes 
    MATERIAL  Stainless Steel 
    MODEL  Factory 4.1 
    SHAPE  Oval 
    SPECIFIC APPLICATION  Yes 
    STYLE  Slip-on 
    TYPE  Exhaust 


    FMF FACTORY 4.1 MUFFLER AN S/S 4.1 YZ



    FITMENT
    MAKEMODELYEAR
    YAMAHAWR250F2014
    YAMAHAWR250F2013
    YAMAHAWR250F2012
    YAMAHAWR250F2011
    YAMAHAWR250F2010
    YAMAHAWR250F2009
    YAMAHAWR250F2008
    YAMAHAWR250F2007
    YAMAHAWR450F2011
    YAMAHAWR450F2010
    YAMAHAWR450F2009
    YAMAHAWR450F2008
    YAMAHAWR450F2007
    YAMAHAYZ250F2009
    YAMAHAYZ250F2008
    YAMAHAYZ250F2007
    YAMAHAYZ250F2006
    YAMAHAYZ450F2009
    YAMAHAYZ450F2008
    YAMAHAYZ450F2007
    YAMAHAYZ450F2006

     

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