Yamaha off-road motorcycle // sport atv fmf factory 4.1 gytr special edition muffler
Exhaust
This Special Edition Muffl er provides the very highest levels
of technology, performance, and of course, “cool.” The
custom carbon fi ber end cap and blue anodized shell give
this muffl er a cutting-edge factory appearance along with
state-of-the-art performance. It’s the complete package! The
Factory 4.1™ Muffl er incorporates the latest FMF® Resonance
Chamber Technology®. The patented chamber design
enhances and refi nes exhaust pressure. Its patented core
shape lowers sound level while maintaining maximum power
output, and the patented canister shape increases internal
volume for more sound-absorbing material. Factory Forward
Engineering centralizes mass and is less prone to impact
damage. Maintenance is made easy with the removal of four
screws on the front end cap, and the innovative rear end cap
simplifi es installation of the spark arrestor (sold separately,
33D-E46C0-R0-00) or tuning tip inserts. Includes QuietCore™
94 dBA insert. Meets AMA® and FIM sound requirements.
Compatible with stock or FMF® header. Built 100% in the
U.S.A.Note: YZ models are for closed-course use regardless of modification.
Yamaha off-road motorcycle // sport atv fmf factory 4.1 gytr special edition muffler
Yamaha off-road motorcycle // sport atv fmf factory 4.1 gytr special edition muffler
