GYTR ECU SET for STK (TCS/LIF off) R6 RJ27 BN6-8591A-B0
By using this ECU with kit wire harness, it is possible to adjust the amount of fuel injection, ignition timing and etc. This ECU is for STK (SuperStock). TCS / LIF function can not be used. CD-ROM, software manual and kit manual are included in this set. From 2019 kit , The manual is only for English and Japanese. [CHANGE FROM 2018] Improved SPEED SHIFT. [IMPORTANT] For STK:All the specs related to the engine need to be STANDARD spec.