FMF Racing Honda CRF450X/RX 21-26 SS Alum Factory 4.1 RCT SO Muffler w/ R. Carbon Cap - 041602

FMF Racing Factory 4.1 Muffler - 041602

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.