Unitronic Stage 1 TCU Transmission Tune C7 S6 4.0T V8

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UnitronicSKU: UNI-S1T-C7S640 DIY Difficulty:

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Performance Stage 1 TCU Transmission Software Precisely Engineered for your C7 S6 with the 4.0T V8 engine.  This vehicle has added support through UniCONNECT+ which allows you to program your own vehicle right in your own garage.

Unitronic software is flashed directly through the (OBDII) diagnostic port of your vehicle (10-15 minutes).


  • Engineered with Strict Industry Standards
  • Extensively Tested Under Various Driving Conditions
  • Optimized TCU Performance Software Stages
  • Optimized Responsiveness and Drivability
  • Optimized "D" Mode for a Comfortable Driving Experience
  • Optimized "S" Mode for Maximum Acceleration
  • Optimized "M" Mode for Maximum Acceleration and Kickdowns Removed
  • Improved Launch Control
  • Rev Limiter Increased
  • Increase Clutch Pressure for Higher Torque Output
  • Increased Torque Limiter
  • Factory Launch Control Limit Removed

What's Included:

  • Unitronic Stage 1 TCU Transmission Tune
  • Unitronic UniCONNECT+ Cable (OPTIONAL)

Vehicle Fitment

Model   + Drivetrain  
C7 S6 4.0T V8

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