ECU Remapping · UK-wide
Custom ECU calibration engineered around your exact vehicle — more power and torque, sharper response, and every factory safety limit left intact.
Free estimated gains · No payment required to book · 12-month software warranty
+24%
Average power gain
Typical Stage 1 result across our most common applications
4,800+
Vehicles tuned
Petrol, diesel and hybrid platforms calibrated to date
98.7%
Client satisfaction
Average score from our post-service customer survey
12 months
Software warranty
Support and map adjustments included on every calibration
Figures are taken from completed RevX calibrations and post-service surveys. They are indicative averages — your own results depend on your vehicle, fuel and hardware.
Vehicle scanner
Pick your make, then your model and engine. You’ll see the power and torque figures we typically achieve on that engine, and you can send it straight to us as a calibration request.
Can’t see your vehicle? Send us the details in the request form below and we’ll confirm what’s possible.
No vehicle selected yet
Choose your make, model and engine to see the estimated power and torque gains.
Our calibrations
Four core packages, each written for your vehicle rather than pulled from a library of generic files.
A custom software-only remap that releases meaningful power on standard hardware.
For cars with supporting hardware, with mapping built around the parts you have fitted.
A torque-focused calibration for smoother delivery and reduced fuel use on long runs.
A controlled overrun soundtrack configured around your vehicle and exhaust setup.
Overrun effects can affect MOT emissions readings and are not suitable for every vehicle. We will advise on legality before you book.
How it works
Diagnose
We read fault codes and assess the engine, hardware and current software before anything is written.
Read
Your original ECU data is read out safely and backed up, so a full return to standard is always possible.
Calibrate
A calibration is authored for your vehicle, fuel, hardware and the way you actually drive it.
Validate
Live data is logged and checked, then the car is road tested or dyno validated before handover.
Validated on live data, not guesswork
Every calibration is logged and checked before it leaves the workshop.
Dyno results
Every build is verified against measured data. Here is a typical Stage 1 result from a 2.0 TSI engine run on our dyno before and after calibration.
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Replace this block with your own before/after dyno graph image — the figures below are an illustrative example.
Example · VW Golf GTI 2.0 TSI
Power
230 → 297 BHP
+67 BHP · +29%
Torque
350 → 450 Nm
+100 Nm · +29%
12-month software warranty
Every calibration is covered for a full year, including map adjustments for sensible hardware changes.
Original file backed up
Your factory file is stored securely, so the car can be returned to standard at any time at no cost.
Diagnostic health check
We read fault codes and check live data before mapping, so no file is written over an underlying fault.
UK-based calibration
Files written and validated in the UK by technicians, not outsourced to a generic file library.
The difference
Off-the-shelf files are written for an engine code, not your car. We build the file for the vehicle in front of us, then prove it on data before you drive away.
Customer feedback
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Common questions
Field Notes
Calibration write-ups, dyno results and technical breakdowns from the RevX workshop.
A Stage 1 remap is more than a boost increase. Here is what we actually adjust inside the ECU file, and why the factory safety limits stay in place.
Read article
The honest answer depends on your hardware, not on the biggest number you have seen online. Here is how we decide between the two.
Read article
A remap is legal in the UK — but there are three things you must get right. Here is the straightforward version.
Read articleCalibration request
Send us your vehicle and the calibration you are interested in. Requests go straight to the RevX team by email and WhatsApp.
We check the vehicle details and confirm what is possible for your engine.
You get a firm price and a realistic time window — no payment to book.
We agree a date, read your original file and calibrate the car.
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