FMF Factory 4.1 Exhaust Muffler - Yamaha WR 250 F ('07-'13) / WR 450 F ('07-'11) / YZ 250 F / YZ 450 F ('06-'09) (titan) - FMF

Titanium Anodized Blue Slip-On Exhaust Muffler FMF Factory 4.1 for Yamaha WR 250 F (2007-2013) / WR 450 F (2007-2011) / YZ 250 F / YZ 450 F (2006-2009).

The Factory 4.1 line is characterized by the lightest weight available in the FMF exhaust range, providing superior power and performance across the entire RPM range due to patented Chamber Core technology. They are made from premium materials and can be customized with tuning inserts or a spark arrestor mode.

Technical Specifications:
- material: titanium | stainless steel
- model: Factory 4.1
- type: slip-on exhaust muffler
- exhaust muffler material: titanium
- design: unique
- end cap material: stainless steel
- mid-pipe material: stainless steel
- exhaust muffler color: anodized blue

Factory 4.1 Slip-On Exhaust Muffler Titanium Anodized Blue Yamaha WR 250 F (2007-2013) / WR 450 F (2007-2011) / YZ 250 F / YZ 450 F (2006-2009).