Gearbox (TCU) Tuning
Faster shifts, stronger launches, smarter transmission
From£199
What It Is
Modern automatic gearboxes — DSG, ZF8, DCT and others — are controlled by their own computer (the Transmission Control Unit). Manufacturers leave significant margin in shift speed, torque limits and response that we can safely unlock.
The result is a gearbox that shifts faster, holds lower gears when you need them, launches harder, and raises its torque ceiling to match your remapped engine. Bundle it with an ECU remap and save 20%.
Signs You Need This
- Sluggish or hesitant gear changes
- Gearbox limits power on a tuned engine
- Launch feel is muted despite engine upgrades
- Downshifts arrive late when overtaking
What's Included
- Transmission health check before flashing
- Faster shift & response calibration
- Raised torque limiters matched to your engine tune
- Launch control where supported by hardware
- Original TCU file backed up