[NYISLESFAN]

Looking to get her tuned. It was explained to me that with '17 A8's GM did something weird with their computers and now the transmission modules have to be sent out to be tuned. I know I can just tune the motor, but is it worth it to get everything tuned? Help!

[JANNETTYRACING]

Originally Posted by NYISLESFAN

Looking to get her tuned. It was explained to me that with '17 A8's GM did something weird with their computers and now the transmission modules have to be sent out to be tuned. I know I can just tune the motor, but is it worth it to get everything tuned? Help!

You have the option to tune just the ECM if you like but as your build progresses you will eventually need to get in to the TCM

The TCM tells the ECM how much torque it can handle and can limit power output when installing Forced induction on the Engine.

If the car is bone stock tuning does very little, other than fans settings, rev limter, speed limiter, Skip shift off or AFM off on auto cars.

GM didn't leave anything on the table for Full throttle power.

I recommend you start with Long Tube Headers as your first mod along with a JRE custom tune.

Ted.