The Competition Kit replaces the stock ECU, includes a modified throttle stop to allow full throttle operation, and permits the usage of the Yamaha Power Tuner App that allows the rider to select between 2 pre-programed ECU maps.
GYTR® Communication Control Unit (B7R-H59C0-V0-00) and/ or Handlebar Map Switch (B7B-83976-00-00), each sold separately, needed for usage of the Yamaha Power Tuner App on 19-21 WR450F models and 20-21 WR250F models.
Specific maps for tuning capabilities available for free on ShopYamaha.com (located under WR GYTR Exhaust Systems' details)
Easy, quick installation
NOTE: This accessory is restricted to closed-course competition use.