Skip to product information
1 of 1

FMF Factory 4.1 Muffler CRF450R 2021-2022 041603 1821-2044

FMF Factory 4.1 Muffler CRF450R 2021-2022 041603 1821-2044

Regular price $668.80 USD
Regular price $759.99 USD Sale price $668.80 USD
Sale Sold out
Shipping calculated at checkout.
  • 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
View full details