main image GYTR by FMF Titanium RCT Factory 4.1 Muffler

GYTR by FMF Titanium RCT Factory 4.1 Muffler

SKU 1SL-E47A0-V0-00
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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.
  • It is compatible with stock or FMF® header and made in the U.S.A.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

  • WR450F (2016-2018)
  • YZ450F (2014-2017)
  • YZ450FX (2016-2018)