If you own a Ford Transit Custom and are looking to enhance its performance, you may have come across two popular options: remapping and tuning boxes. Both methods can improve your vehicle's power, torque, and fuel efficiency, but they differ in terms of approach and results. In this post, we'll explore the differences between remapping and tuning boxes, helping you make an informed decision for your Ford Transit Custom.

What are Tuning Boxes?

Tuning boxes are external modules that intercept signals between the engine sensors and the ECU. They can increase power output without directly altering the ECU software. Tuning boxes are typically easy to install, requiring no physical modification to your vehicle.

They can provide noticeable performance gains, including increased power and torque. However, they often offer a one-size-fits-all solution, lacking the customization options available with remapping. Since tuning boxes work by intercepting signals, they may not be able to fully optimise the engine's performance in the same way as remapping.

What is Remapping?

Remapping, also known as ECU tuning or chip tuning, involves modifying the engine's control unit software to optimise its performance. The modifications are tailored to the specific characteristics of your vehicle, maximising its potential. Chip tuning boxes and remapping differ in their approach: boxes usually adjust injection timing or pressure while remapping offers greater control, resulting in a superior tune, better drive and zero risk to your engine.

Remap a Transit Custom at Unichip Europe

One of the key advantages of remapping is its ability to provide a personalised and precise tuning solution. At Unichip Europe, our ECU tuning kit to remap a Transit Custom contains the Unichip X Module. This module delivers an impressive increase of +23.1% horsepower, boosts metric horsepower to 210.4PS (213.3HP) and adds an impressive +115.0 LB-FT (+156 Nm) of torque gained at 2,000 RPM.

Our Unichip X Module also contains our renowned multi-map options within the Premium or Deluxe Editions of our Transit tuning kits. Equipped with a map switch, you'll enjoy 5 customised maps that can be easily switched so you can experience substantial performance and driveability enhancements.

The Unichip system also includes additional features such as an anti-theft map, towing map and fuel economy map, among others. It is also very easy to install the Unichip X module; simply locate your ECU, disconnect the existing wiring harness, plug in the Unichip and you're good to go! If you have any concerns or need assistance, our workshop is available Monday to Friday. Please feel free to call us and we'll be happy to help.



When it comes to choosing between remapping and tuning boxes for your Ford Transit Custom, it's essential to consider your specific needs and preferences. For a cost-effective solution, a tuning box could meet your needs, but if you value customisation and precision, remapping may be the way to go. Remapping offers tailored modifications to your vehicle's ECU, ensuring optimal performance while taking into account your needs.


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