FMF Factory 4.1 Muffler 044211 1831-0359 909 Uppercut Slip-On Mufflers Reflective sandwich visor

Reflective sandwich visor

Fuel Injector Proportioning

Integrated high-visibility reflective details for increased visibility

yet allows good feel in turns Anatomically shaped for optimal contact

The most significant upgrades to the Tech 10 performance are unique technologies: The Frontal Flexion Control Frame

FMF Factory 4.1 Muffler 044211 1831-0359 909 Uppercut Slip-On Mufflers Reflective sandwich visorIf performance is your priority, the Factory 4. 1 is the exhaust for you Used by Factory teams such as KTM, Epic Can Am and Rath Racing Accepts optional quiet inserts and spark arrestors For use with FMF Powerbomb, FMF Megabomb, or stock header