Yamaha GYTR Competition Kit WR450F 21+

Yamaha GYTR Competition Kit WR450F 21+

The GYTR 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.
• Handlebar Map Switch (B7B-83976-00-00), sold separately, needed for usage of the Yamaha Power Tuner on 16-18 WR450F models and 15-19 WR250F models.
• Specific maps for tuning capabilities available for free on ShopYamaha.com (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
• Easy, quick installation

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.