The patented FMF Resonance Chamber Technology enhances and refines 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 easy remove four screws on the front end cap, and the innovative rear end cap simplifies the installation of the spark arrestor (sold separately) or tuning tip inserts.
Includes QuietCore 94 dBA insert. Meets AMA and FIM sound requirements.
Compatible with stock or FMF header and made in the U.S.A.
NOTE: This accessory is restricted to closed-course competition use.
See California Regulations regarding Emission-Related Parts and
Accessories for products for closed-course competition use only.
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North Ridge Yamaha
5929 North Ridge West (Route 20)
Geneva, OH 44041-9665
Phone: (440) 466-2712