STX Tuning performance checker
See what your car could make after a remap.
Wondering how much more power your car could produce with a Stage 1 or Stage 2 remap?
Choose your vehicle to compare its standard power and torque against the available ECU tuning estimates.
At STX Tuning in Slough, we help drivers find the right remapping options for their exact engine, with clear performance figures, vehicle-specific prices and straightforward advice before booking.
Select your make, model, generation and engine to see the available Stage 1 and Stage 2 power and torque estimates.
Can't find your car?
Not every vehicle is listed online. Send STX Tuning your registration, make, model and year and we'll check the available options.
Choose a vehicle above, or pick one of the popular cars further down, to see its standard, Stage 1 and Stage 2 figures side by side.
The highest power figure isn't always the best option for your car.
Stage 1 is generally designed for compatible vehicles using standard engine hardware. Stage 2 is planned around a suitable hardware setup and matching ECU software.
The right choice depends on the engine, existing modifications, mechanical condition and how you want the vehicle to perform.
More performance without a major hardware build.
Stage 1 remapping can improve the power, torque and response of a compatible engine using its existing hardware.
It's a popular starting point for drivers who want stronger everyday performance without moving directly into more extensive mechanical modifications.
Performance tuning planned around your hardware.
Stage 2 tuning generally involves software calibrated for suitable supporting components.
The required parts are different for every engine. STX Tuning can help you check whether Stage 2 is appropriate before providing a quotation.
Power and torque are two of the figures customers usually compare before choosing an ECU remap.
They matter, but they don't tell the whole story. Where the engine delivers its performance, how the gearbox behaves and the condition of the vehicle can all affect the driving experience.
Power describes how quickly an engine can do work.
On STX Tuning vehicle pages, verified power figures are displayed in PS.
A higher peak power figure may contribute to stronger acceleration, but the difference you feel depends on the engine's overall performance characteristics, not just its highest number.
Torque describes rotational force produced by the engine.
More usable torque can help a vehicle pull more strongly through parts of its rev range, especially under acceleration.
However, the amount of torque, where it is delivered and the vehicle's gearbox limits all need to be considered.
Bigger numbers are useful. The right calibration for your engine matters more.
Drivers often look at peak power figures first, but the biggest difference can be how the vehicle responds during normal driving.
Compatible engines may deliver more power and torque after remapping.
Depending on the vehicle, this can improve acceleration across parts of the usable rev range.
Additional usable torque may improve how strongly the car pulls in everyday driving.
The effect varies by engine, gearing and calibration.
Some compatible ECU calibrations can change how the engine responds to accelerator input.
The result depends on the original software, vehicle setup and how the engine is controlled.
Additional performance is not guaranteed for every vehicle. Suitability, mechanical condition, original calibration and any existing modifications must be considered before tuning.
ECU remapping prices vary by vehicle, engine, ECU and the work required.
Some engines have published Stage 1 prices in our tuning catalogue, while others need an individual quotation.
Once you've selected your vehicle, STX Tuning can show the available price and help you compare any additional tuning options.
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Real tuning. Clear information.
Choosing a remap starts with understanding what's suitable for your car.
STX Tuning is based in Slough, Berkshire, offering ECU remapping and specialist tuning services for compatible petrol and diesel vehicles.
Our vehicle catalogue helps you check the available performance estimates before you enquire, so you can compare options for your exact engine rather than rely on generic power claims.
Vehicle-specific figures
View available power and torque estimates for the exact engine you're considering.
Clear quotations
See verified prices where listed or request an individual quotation.
Slough workshop
Speak to STX Tuning about tuning appointments at our Slough workshop.
Mobile options
Suitable ECU software appointments may also be available in approved surrounding areas.
Read verified customer feedback before choosing who works on your vehicle.
Google Customer Reviews
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STX Tuning operates from Slough, Berkshire, offering Stage 1 and Stage 2 ECU remapping for compatible cars and vans.
Customers can enquire about workshop appointments in Slough, while suitable ECU software services may also be available at home or work in selected surrounding areas.
We regularly receive enquiries from drivers across Berkshire, Buckinghamshire, Surrey and West London.
Mobile availability depends on the vehicle, software procedure and postcode, so we confirm those details before arranging an appointment.
From everyday turbocharged cars to high-performance petrol and diesel models, available remapping figures vary considerably between engines.
Choose a vehicle below to view its relevant tuning data.
The available gain depends on the engine, ECU, vehicle condition and type of remap. Some turbocharged engines have greater tuning potential than others. Use the STX Tuning vehicle checker to see the estimates listed for your exact engine.
There isn't one figure that applies to every car. A Stage 1 remap can provide different gains depending on engine design and calibration. Our catalogue displays verified figures in PS, so check the exact engine rather than relying on a general BHP estimate.
A remap checker can show the performance estimates available for a particular engine, but it cannot guarantee the output of an individual vehicle. Actual results depend on mechanical condition, fuel, hardware, software and testing conditions.
PS and bhp are different units used to describe engine power. The numbers are close but not identical. STX Tuning displays verified power information in PS and torque in Nm for consistent comparisons.
Nm stands for newton metres, the unit used to measure torque. Torque is important when comparing how strongly an engine may pull through its rev range.
Stage 2 is generally designed for a vehicle with suitable supporting hardware. It may offer greater performance on compatible engines, but the result depends on the setup. Stage 2 isn't automatically the right choice for every car.
Unless an individual result is clearly labelled as a measured STX Tuning dyno result, the figures shown are tuning estimates for the listed engine. They should not be treated as a guaranteed measured output for your own vehicle.
Fuel consumption may change, but savings are not guaranteed. The result depends on your engine, driving style, journey type and how you use any additional power.
Suitability depends on the engine, maintenance, mechanical condition and calibration. Increasing performance can put additional demands on components. STX Tuning can review your vehicle details before confirming a suitable service.
Verified prices are displayed for supported vehicle records where available. If your exact engine or tuning stage isn't priced online, request a quotation and we'll check the options.
Many compatible automatic cars can be ECU remapped. The gearbox and its torque-management limits should also be considered. Some vehicles may have separate gearbox tuning options.
STX Tuning is based in Slough, Berkshire. Suitable mobile ECU software appointments may be available in selected surrounding areas. Send your vehicle and postcode so we can check availability.
The required appointment time depends on the vehicle, ECU access method, software procedure and any checks needed. Contact STX Tuning with your registration to confirm the expected arrangements.
An ECU remap is a vehicle modification and should be disclosed to your insurer. It may also affect manufacturer warranty cover, particularly for related claims. Check the applicable policy and warranty conditions before proceeding.
Yes. Send STX Tuning your registration, make, model, year and engine details, and we'll help check the available tuning options.
Ready to see what your car can do?
Found your vehicle and want to know what's available?
Send STX Tuning your selected engine, tuning stage and any additional services you're interested in.
We'll review the details, confirm the available quotation and help you arrange a suitable workshop or mobile appointment.