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FMF Factory 4.1 Muffler 041595 1821-2021

FMF Factory 4.1 Muffler 041595 1821-2021

Regular price $308.00 USD
Regular price $349.99 USD Sale price $308.00 USD
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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
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