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FMF Factory 4.1 Slip-on Muffler


 
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Price: $ 310.33 to $ 719.99
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  • Developed from FMF's successful Factory 4
  • Designed to be a compact, perfect-fitting slip-on, centralizing and lowering the mass of the machine
  • Expect an increase in power throughout the rev range and a big boost in the upper rpm range
  • Space-age internal packing for maximum packing life
  • Compact design for a shorter overall length
  • Exclusive oval-to-round canister