T-Tec Tuning Box

The T-Tec range of tuning boxes offer superb performance improvements, completely transforming the driveability of your car.

Our ethos of Powerful, Simple and Safe runs through all the products we offer, and these tuning boxes are no exception.

A tuning box works by adjusting certain sensor signals to effectively force your ECU to remap itself. It sees new readings and adapts the performance output of the engine accordingly. The advantage of this over a traditional ECU remap is that all adjustments remain within the factory set safety parameters.

(33 customer reviews)



Tuning Box Search:


Your Engine Dances to our Tune

With the T-Tec tuning box installed, it will be running more efficiently than it ever did before. Bringing the power in earlier down the rev range and smoothing out performance spikes that cause an erratic driving experience.

On most vehicles, fitting can be done in 15 minutes without the need for any specialist tools. We also offer a [fitting service] if you prefer.

Mobile App Controlled

Whilst our tuning boxes work wonders as a fit and forget product, you also have the option to have it mobile app enabled. This means once fitted, you can control it directly from your smartphone.

You can switch between different tuning maps for different conditions and even switch it off if needed (e.g. in icy or very wet conditions where you actually want less power driving the wheels).

More Power, Less Fuel

For those that use the power, especially if you have a heavy load, towing a caravan or simply a fairly heavy right foot, you will also see an increase of up to 20% in fuel economy!

5 Year Warranty

All our tuning boxes come with a 5 year warranty as standard. This means any component failure within 5 years of your order date will be replaced or repaired at no cost to you.

Transferable Technology

Unlike an ECU remap, if you change your car you can take your tuning box with you. All you may need is a [change of harness] and/or a [new map].

If you are an ultra cautious driver trying to save every drop of fuel where you can and never putting down the power unless you absolutely need to, this tuning box is not for you. You will not experience the benefits and not see much, if any, MPG increase.

33 reviews for T-Tec Tuning Box

  • Ian Holt

    Purchased the tuning box for my 525d to give it the extra help it needed. Changed my car to a 123d and having exchanged e-mail with phpplus they offered me a step by step guide how to upload a new map. I’ve transferred the kit across which takes less than 3 minutes now (becoming a dab hand). I really like the fob function to enable me to switch it on or off to suit conditions or who may be behind the wheel.