🏎️ CUSTOM GEARBOX TUNING · FROM £200

TCU Remap
London

Professional TCU remapping and gearbox tuning across London. Faster shifting, sharper launch control and improved gearbox performance — matched to your ECU tune. Mobile service at your location.

From £200 — Mobile Service Included
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Common Symptoms We Fix

These are the most common faults we resolve every day across London.

🐌
Slow Gearbox Response
Sluggish gear changes that feel soft or delayed — TCU tune sharpens everything up.
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Want Faster Shifts
Looking for quicker, more aggressive gear changes to match your ECU remap.
🚀
Poor Launch Performance
Gearbox not performing well from a standing start — TCU tune improves launch control.
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Gearbox Mismatch
ECU has been remapped but gearbox tune hasn't been updated to match.
⚙️
Automatic Gearbox Issues
Automatic or DSG gearbox not shifting smoothly or holding gears too long.
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Track Use
Want optimised gearbox behaviour for track days or performance driving.

Get to Know SPARKY TUNING

See how we work, what we build, and why real tuning makes the difference.

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How TCU Remapping Works

Fast, clean and permanent — we come to your location across London.

1
Contact Us
Call or WhatsApp with your vehicle details. We confirm and arrange same-day visit.
2
We Come To You
Our technician arrives at your location — home, workplace or anywhere in London.
3
TCU Calibration
We connect to your gearbox TCU and apply a custom tune matched to your vehicle and ECU.
4
Better Gearbox
Faster shifts, better launch, improved overall gearbox performance. Immediately noticeable.

Why Choose Sparky Tuning

London's trusted mobile ECU specialists.

Matched to Your ECU

If you have an ECU remap, your TCU tune is calibrated to match — giving a seamless drivetrain upgrade.

Custom Files

Every TCU file is written for your specific gearbox — not a generic off-the-shelf solution.

Mobile Across London

All of Greater London plus Essex, Surrey, Kent and Hertfordshire.

Same-Day Service

Call in the morning, we arrive the same day across London.

From £180

Professional TCU remapping from just £180 with mobile service included.

1000+ Happy Customers

Trusted by over 1,000 vehicle owners across London. 4.9 star average rating.

Frequently Asked Questions

Everything you need to know about our service in London.

A TCU (Transmission Control Unit) remap adjusts the gearbox software to change shift points, shift speed, launch control behaviour and torque limits. The result is faster, sharper gear changes and better overall gearbox performance.
Our TCU remap starts from £200 with mobile service included. Combined Stage 1 + TCU package is available from £400.
Yes — if you have had an ECU remap, getting a matching TCU remap ensures your gearbox can handle the extra power and is tuned to complement the engine tune.
Most TCU remaps take 1–2 hours at your location.
Yes — same-day appointments available across London. Call or WhatsApp us.

Ready for a Sharper Gearbox?

Same-day TCU remapping across London. Custom gearbox tuning matched to your engine. From £180.

💬 WhatsApp Us Now 📞 +44 7446 209031
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