It will work on 6 or 8-speeds as well. We just are not able to tune the 2017+ 8-speed transmissions. We can tune a limited amount of the 2019 models and unfortunately, cannot tune any of the 2020+ models.
If you have a flex fuel, our tuner will alter the flex fuel tables within the tune to optimize the use of E85. We don't have an E85 specific tune, but you can run it on our 89/87 or 91+ octane tunes. If you do not have a flex fuel, you can install the sensor and we can then adjust for that in...
You're welcome. We are a performance tuning company for GM vehicles. We reprogram the engine and transmission to increase hp and torque output, improve shifting and throttle response, and make the vehicle more fun to drive.
Welcome to the forum from Northern Idaho! Lots of knowledgeable people here. If you are looking to tune it, at least with us and EFILive, we can tune up to 2019 on the Tahoe and Yukon models. For the 2017+ 8 and 10-speeds, the transmission computers are locked so we are only able to tune the engine.
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