Replaces the stock ECU and allows the usage of the Yamaha Power Tuner App (with the GYTR® Communication Control Unit) that allows the rider to select between 2 pre-programmed ECU maps.
Includes a modified throttle stop to allow full throttle operation
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