21-24 CRF450R MFLR 4.1 ALU SS W/C EC
- 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
- The lightest mufflers available
- Superior power and performance - horsepower improved throughout the rpm range
- Meet AMA sound requirements on most models; inserts available for others
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