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

More Information
Manufacturer SKU	042383
Manufacturer:	FMF RACING
Department	PAM-PU
HTP Sale	No
Show Stock	Yes
Riding Style	Off-Road
California Restricted Product:	No

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Factory 4.1 Muffler 042383