Official xHP
Pro Installer
Official xHP
Pro Installer
Unlock the full potential of your automatic gearbox with professional xHP Stage 1, 2 & 3 tuning. Faster, firmer, more responsive shifts — calibrated by an authorised installer in Dunstable, Bedfordshire.
About xHP
Professional TCU Tuning
xHP is a professional transmission control unit (TCU) tuning system trusted by thousands of dealers worldwide. It is used to remap automatic gearboxes for faster, firmer and more responsive shifts — transforming the way your car drives without touching the engine ECU.
Torxtuning is an official, authorised xHP Pro Installer. Every flash is carried out with licensed xHP Flashtool software, proper diagnostic tooling and a full backup of your original TCU file.
TCU Remapping
Transmission-only flashes
Stage 1, 2 & 3
Progressive calibration levels
OBD Flashing
No hardware required
Original Backup
Fully reversible to stock
Compatibility
Supported Vehicles
E-Series
Classic BMW platforms including 1 Series, 3 Series, 5 Series, X5 and M models with 6-speed automatic and DCT gearboxes.
F-Series
The most popular BMW generation — F20, F30, F32, F10, F80 M3, F82 M4 and related chassis with 7-speed DCT and 8-speed auto.
G-Series
Latest BMW platforms including G20, G30, G05, G80 M3, G82 M4 and the G-Series/Supra 8-speed automatic application.
Supported Gearboxes
Coverage includes standard BMW and MINI automatic transmissions as well as G-Series/Supra 8-speed applications. Contact us with your registration to confirm exact TCU compatibility.
Tuning Stages
Choose Your Stage
Stage 1
Entry-Level Shift Map Improvements
A refined shift strategy for everyday driving. Smoother, more decisive gear changes, reduced shift delay and improved drivability for stock or lightly modified vehicles.
Stage 2
Mid-Level Performance Tune
Faster, firmer shifts with raised shift RPMs and revised launch-control behaviour. Ideal for modified cars that need the gearbox to keep pace with extra engine output.
Stage 3
Top-Tier Custom Map
A fully customised calibration for high-power or heavily modified builds. Shift pressures, torque limits and launch settings are tailored to your exact setup and intended use.
Why Torxtuning
Why Choose Us
Genuine xHP Installation
We are an official, authorised xHP Pro Installer using licensed xHP Flashtool software.
Stock or Modified
Calibrations tailored to your vehicle's current state — from factory standard to big-turbo builds.
Fast Turnaround
Most installs completed within an hour. xHP installation is carried out in-person at our Dunstable workshop only.
Experienced Technicians
Years of BMW, MINI and performance-car tuning experience with correct diagnostic tooling.
FAQ
Gearbox Tuning Questions
Yes. xHP Flashtool creates a backup of your original TCU file before flashing, so the gearbox can be returned to stock at any time.
Any ECU or TCU modification can potentially affect manufacturer warranty coverage. We recommend discussing this with your dealer if your vehicle is still under warranty.
Most xHP installations are completed within 30–60 minutes. You can wait at our workshop while the work is carried out.
No additional hardware is required for most supported vehicles. The tune is written directly to the TCU via the OBD port using xHP Flashtool.
Ready to Book
Book Your Gearbox Tune
Message us on WhatsApp with your make, model and year. We'll confirm compatibility, recommend the right stage and arrange an appointment at our Dunstable workshop.
- Official xHP Pro Installer
- Stage 1, 2 & 3 calibrations
- Workshop installation only