STX Tuning

Automatic gearbox software tuning

Gearbox & TCU remapping in Slough

Sharper shifts. Smarter gearbox response. Tuning for your transmission.

Want your automatic gearbox to respond better to the way you drive?

Gearbox remapping, also known as TCU tuning, adjusts supported transmission software settings to change how a compatible automatic gearbox behaves.

Get my gearbox quote on WhatsApp
Call 01753 439130

Slough workshop · DSG / S Tronic / ZF enquiries · Vehicle-specific quotes

Find your car. Check your gearbox.

Not every automatic gearbox supports the same software changes.

Choose your vehicle to check which transmission tuning options may be available.

Can't find your car?

Send us your registration, make, model and approximate year and we'll help identify your gearbox.

STX Tuning — automatic gearbox software

  • Transmission-specific options

    Software availability checked against the gearbox fitted.

  • Clear quotations

    Know what's being proposed before booking.

  • Slough workshop

    Speak directly to STX Tuning about an appointment.

  • Genuine Google reviews

    Read real customer feedback.

Understanding TCU tuning

What is gearbox remapping?

Many modern automatic gearboxes are controlled by software inside a transmission control unit, commonly called the TCU.

This software helps manage gear selection, shift timing, torque-related behaviour and other functions according to the gearbox design.

Gearbox remapping changes supported software settings to alter how a compatible transmission behaves.

On certain vehicles, this can improve shift response or change the points at which the gearbox selects a different gear.

Some transmissions also support additional software options, although these vary by gearbox type, software version and vehicle specification.

Gearbox tuning is separate from an engine ECU remap. It doesn't automatically increase the engine's horsepower, and it isn't a repair for mechanical gearbox faults.

The correct approach depends on the exact transmission fitted to your vehicle.

Automatic gearbox components, illustrative image

What difference could a gearbox remap make?

Gearbox tuning is about how a compatible transmission responds and changes gear.

The available changes depend on the gearbox, vehicle and approved calibration.

Sharper gear changes

On supported transmissions, software calibration may change the timing and response of gear shifts.

Some drivers may notice a more immediate response, particularly during more demanding acceleration.

The result depends on the gearbox and its original software.

Refined shift points

Certain automatic transmissions allow adjustments to when the gearbox changes gear in supported driving modes.

The aim is to make gear selection more appropriate for the vehicle and its intended setup.

This isn't available in the same way on every transmission.

Torque-management options

Some gearbox control systems manage how engine torque is handled during operation.

Suitable calibration changes may be relevant when a compatible vehicle has additional engine performance, but mechanical gearbox limits still matter.

Software cannot make worn or unsuitable transmission hardware capable of unlimited torque.

Driving-mode response

Depending on the transmission, software options may affect how the gearbox responds in normal, sport or manual driving modes.

The actual changes must be confirmed for your specific gearbox.

The best gearbox tuning option is the one that suits your transmission and how you drive.

DSG, S Tronic & ZF gearbox tuning

Automatic gearboxes use different mechanical designs and software systems.

STX Tuning can help you check the options for supported transmissions, including selected Volkswagen Group DSG and S Tronic gearboxes and compatible ZF automatic transmissions.

Volkswagen Golf R, illustrative studio render

Volkswagen Group DSG tuning

DSG is Volkswagen Group's name for a range of dual-clutch automatic transmissions.

Different DSG gearboxes use different control hardware and software, so the tuning options aren't identical across every model.

On supported versions, gearbox tuning may offer changes to shift behaviour, torque-management settings, gear selection or other applicable software features.

STX Tuning can help identify the gearbox fitted to your vehicle before confirming the available calibration.

Learn about DSG remapping
Audi S3, illustrative studio render

Audi S Tronic gearbox tuning

Audi S Tronic is used across a range of dual-clutch automatic transmissions.

The exact gearbox and available software options depend on the vehicle, model year and transmission hardware.

For supported versions, tuning may alter selected shift and torque-management characteristics.

The gearbox must be correctly identified before a suitable service can be confirmed.

View DSG & S Tronic tuning
BMW M140i, illustrative studio render

BMW ZF automatic gearbox tuning

Many BMW models use ZF automatic transmissions, including variants of the widely used eight-speed gearbox family.

Available TCU software options depend on the exact transmission, vehicle software and supported tuning procedure.

On compatible vehicles, calibration options may influence shift behaviour, driving modes and torque-related settings.

STX Tuning can check the transmission fitted to your BMW before confirming compatibility and quotation.

BMW xHP gearbox software enquiries: ask STX Tuning about supported xHP gearbox software options for compatible BMW transmissions.

BMW xHP gearbox software enquiries

Images are illustrative. Gearbox families are named for guidance only; support is confirmed per vehicle.

Software options

What can be adjusted on a compatible gearbox?

Transmission software features vary by gearbox.

Choose the functions you're interested in and STX Tuning can check which options are available for your exact vehicle.

Should you remap your engine and gearbox together?

Engine and gearbox software control different parts of your vehicle's operation.

An ECU remap may change how much torque the engine produces. The gearbox then needs to manage the demands placed on it.

On some compatible automatic vehicles, reviewing engine and gearbox software together can be sensible.

However, gearbox tuning isn't automatically required for every Stage 1 or Stage 2 remap, and the available TCU options depend on the actual transmission.

Stage 1 + gearbox tuning

Explore available Stage 1 engine tuning alongside compatible gearbox software options.

STX Tuning can check whether a combined package is appropriate for your vehicle and provide a clear quotation.

Stage 1 Remapping

Stage 2 + gearbox tuning

Considering Stage 2 performance upgrades?

The gearbox and its torque-management characteristics should be considered as part of the wider vehicle setup.

Where supported, STX Tuning can discuss suitable ECU and TCU software options together.

Stage 2 Remapping

Engine remapping and gearbox tuning are separate services unless explicitly included in a verified package quotation.

Do you need gearbox tuning or a gearbox repair?

Gearbox remapping changes supported transmission software settings. It doesn't repair worn clutches, damaged gearbox components or faulty mechatronic hardware.

If your vehicle is slipping between gears, making unusual noises, showing transmission warnings or struggling to select gears, the cause should be assessed before tuning is considered.

A software calibration should not be presented as a guaranteed fix for a mechanical or electrical fault.

Tuning enquiry

Interested in changing gearbox response?

Tell us your vehicle and what you'd like the transmission to do differently.

Fault enquiry

Experiencing a gearbox problem?

Send us the symptoms, any warning messages and relevant fault codes so we can advise whether an appropriate assessment or referral is available.

STX Tuning does not offer gearbox rebuilding or mechatronic replacement.

Ask about my gearbox issue

How much does gearbox remapping cost?

The cost of gearbox remapping depends on the vehicle, transmission type, software version and work required.

Some gearboxes support several software options, while others have more limited compatibility.

STX Tuning can check the transmission fitted to your vehicle and confirm the available services before quoting.

Where a verified price is listed, we'll show it. Otherwise, request a vehicle-specific quotation.

Your vehicle
Not selected yet
Gearbox
To be confirmed
Requested service
Gearbox / TCU Tuning
Additional software options
None selected
Engine ECU remapping
Price
Price on request

How it works

From your gearbox enquiry to your appointment

Before any gearbox software work is agreed, it's important to identify the transmission and confirm which options are suitable.

Here's how to get started with STX Tuning.

  1. 1

    Step 1 — Tell us what you drive

    Enter your registration or choose your exact vehicle using our finder.

  2. 2

    Step 2 — Identify the transmission

    We'll check which gearbox is fitted and whether suitable TCU software options are available.

  3. 3

    Step 3 — Review your options

    We'll explain the available service, any compatibility checks and whether related ECU tuning is relevant to your setup.

  4. 4

    Step 4 — Confirm your quote

    Once the scope of work is clear, we'll confirm the quotation and discuss an appropriate appointment.

  5. 5

    Step 5 — Complete the agreed software work

    The approved transmission software procedure is carried out using supported equipment, with relevant findings and completion details explained as appropriate to the agreed service.

Slough-based gearbox software tuning

Gearbox remapping in Slough & surrounding areas

STX Tuning is based in Slough, Berkshire, offering ECU and specialist gearbox software tuning enquiries for compatible vehicles.

Customers looking for DSG, S Tronic, BMW ZF or other supported automatic transmission software can contact our Slough workshop for vehicle-specific advice and quotation information.

We welcome enquiries from drivers in Slough, Windsor, Maidenhead, Reading, Uxbridge, Bracknell, High Wycombe, Staines and other surrounding areas.

Tell us your vehicle, transmission type if known and what you're looking to improve. We'll help check the available options and appropriate appointment arrangements.

View all service areas
Workshop bench with tuning equipment, illustrative image

Visit our Slough workshop

Our Slough workshop is the main base for STX Tuning's specialist vehicle tuning services.

Car remapping in Slough

Can gearbox tuning be done mobile?

Some software procedures may be suitable for mobile attendance, while others require workshop equipment or additional checks. We must confirm the exact gearbox and software procedure before offering a mobile appointment.

Mobile remapping

Your vehicle deserves proper advice

Why choose STX Tuning for gearbox software?

When you're considering changing the software that controls your gearbox, it's important to know exactly what service is being proposed.

Different transmissions have different capabilities and limitations.

STX Tuning can help you identify the gearbox fitted to your vehicle, review the available software options and obtain a clear quotation before booking.

  • Vehicle-specific compatibility

    Confirm the transmission before recommending software.

  • Transparent quotations

    Know what's included before agreeing to work.

  • ECU & TCU enquiries

    Explore suitable engine and gearbox software options together.

  • Slough workshop

    Speak directly to STX Tuning about your vehicle.

Google Customer Reviews

See what customers say about STX Tuning

See what customers say about their experience with STX Tuning.

Google Reviews

4.9

535 Google Reviews

  • Tracy

    Jan 2026

    Amazing company, arrived within 2 hours of my call and fixed the problem where another garage had failed. So happy to have the issue resolved, technician was so nice and explained everything, excellent service, highly recommend STX Tuning

    Posted on Google · view on our Google profile
  • Jake Bickmore

    Dec 2025

    STX Tuning were absolutely brilliant. The service was super fast — same day turnaround — and they solved an issue with my car that a main dealer claimed would cost me thousands to fix. It turned out the expensive repair wasn’t even necessary, and STX handled it quickly and professionally. Honest, efficient, and highly recommended!

    Posted on Google · view on our Google profile
  • Matthew Mooney

    Nov 2025

    STX were great! (its within ONYX which confused me when I got there, no biggy, just for anyone else reading it). I happened to be arriving when a guy must have been starting their shift, super helpful and got me to the right person. On the way in they even took the time to show my son the Lambo they had, this type of service is so nice to receive. The young guy we spotted fitting the wheels later on, thank you! In for a Stage 1 remap, all done in 30 minutes, and car drives brilliantly and exceeded expectations. Also at a great price as well. All staff I met were super nice and helpful. Credit to you guys! I will definitely be choose these guys going forward! Highly recommend.

    Posted on Google · view on our Google profile

Gearbox remapping — your questions answered

Gearbox remapping is a software change to a supported automatic transmission control unit. Depending on the gearbox, it may alter shift behaviour, gear-selection points or other supported transmission settings.

Other tuning options for your car

Depending on your vehicle and performance goals, you may want to consider engine ECU remapping alongside gearbox software.

STX Tuning can help you review relevant options without automatically adding unnecessary services.

Stage 1 ECU remapping

More engine response & torque

Explore Stage 1 engine software for compatible vehicles.

View service

Stage 2 ECU remapping

Planning a more involved performance build?

Review vehicle-specific Stage 2 ECU and supporting hardware options.

View service

Performance gains

Check your engine's available figures

Compare verified standard and tuned engine performance estimates.

What we do

More than just ECU remapping.

From Stage 1 and Stage 2 ECU remapping to gearbox tuning and supporting performance upgrades, STX Tuning offers specialist vehicle software and tuning services for compatible petrol and diesel cars and vans.

Explore the available options for your exact vehicle at our Slough workshop, with suitable mobile ECU remapping appointments available across selected surrounding areas.

Not sure which tuning service you need?

Tell us what you drive and what you'd like to achieve. We'll check your vehicle and help you explore the available options.

4.9/5 | 500+ Google Reviews

Ready to check your gearbox?

Find the right gearbox software for your car.

Tell STX Tuning what you drive and what you'd like to improve.

Whether you're interested in DSG tuning, Audi S Tronic software, BMW ZF gearbox options or combining ECU and TCU tuning, we'll check the available services for your vehicle.

Send us your registration and gearbox details if known and we'll help you get started.

Get Your Gearbox Tuning Quote

Select one or more services and send your enquiry to STX Tuning.

Add this service to my tuning package
Your vehicle
What do you need?

1 service selected: Gearbox

Where would you prefer the work?
Your details

We save your enquiry first, then WhatsApp opens with your message ready. Press Send in WhatsApp to complete it.

  • 4.9/5 Google rating · 535 reviews
  • Slough workshop
  • Vehicle-specific quotes

No payment needed. We use your details only to handle this enquiry. See our privacy policy.