GYTR® Competition Kit WR450F™ for CCU
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The Competition Kit replaces the stock ECU and allows you to program fuel and ignition maps directly into your WR450F via the Yamaha Power Tuner App.

  • Make fueling and ignition timing changes instantly and upload them to the bike via the onboard WiFi® system for the ultimate in track-side tuning.
  • Requires the GYTR Communication Control Unit (sold separately)
  • Includes a modified throttle stop to allow full throttle operation
  • Specific maps for tuning capabilities available for free on (located under WR GYTR Exhaust Systems’ details)
  • For maximum performance, it is recommended but not required to be used in conjunction with accessory GYTR Full Exhaust Systems
  • Closed-course competition use only
  • Easy, quick installation
  • Available January 2019

This accessory affects emissions; installation on EPA-regulated 2006 or later WR models constitutes unlawful tampering except when used solely for closed-course competition.

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.

WARNING: Cancer and Reproductive Harm -


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