FMF Factory 4.1 Muffler 041594 1821-2020 Elsewhere Jersey - Black - XL Polyester wraps pretreated with silicone

Polyester wraps pretreated with silicone

Localized perforation on full front panels

This exhaust system was developed using the same technology that has powered the Graves Racing Team to 25 Professional AMA National Championships including 9 Superbike Championship titles and 3 Side x Side Pro Titles (Pro Stock and Pro Mod UTV)

Stretch accordions on fingers and thumb to increase flexibility and fit

DWR (Durable Water Repellent) treatment on the on the external shell additional wet weather performance

FMF Factory 4.1 Muffler 041594 1821-2020 Elsewhere Jersey - Black - XL Polyester wraps pretreated with siliconeFactory 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