FMF Factory 4.1 Slip-On - Anodized Titanium Muffler

Anodized titanium slip-on muffler. EMIS: 3.

• 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