'Since my last car was done by you guys (mini cooper S) I had to bring my other two cars in for more power. The Elise now pulls a lot harder in the middle of the rev range, and the Audi is now AMAZING!'  J.J. London



examples of auto power boosts
ecu map for VW Golf GTi V
197 280 ORIG.
242 327 TUNED
The GTI Golf develops some serious power after this remap. A big surge in low down torque can be expected as well as an improvement in MPG when driven carefully! When timed, this car was almost 2 seconds quicker than the standard car.

Find Your Car - get a tuning quote

Make Model  
Fuel type Variant reset search
Use the form above to find your car. Start with the make then work your way through the menus to find your car. When your car has been found this page will reload and the details and your quote will be displayed on screen. If we can't find your car in our database then call us on 01932 800 800 or email us.

Please note that we do not visit your location all work is carried out in our Byfleet workshop.


Chip tuning, engine tuning and ECU remapping by Chiptronics UK

ECU remapping graph

visit our new ECU remapping and Chip Tuning FAQ

Chip tuning refers to changing or modifying an EPROM chip in a car's or other vehicle's electronic control unit (ECU) to achieve better performance, whether it be more power, cleaner emissions, or better fuel economy.

This was done with early engine computers in the 1980s and 1990s. Today, the term chip tuning can be misleading, as people will often use it to describe ECU tuning that does not involve swapping the chip. These days we can tune a modern ECU by simply updating its software through a standard interface, such as the cars diagnostics ports. This procedure is commonly referred to as engine or ECU tuning.

As technology has advanced, so has the electronics that go into cars. The ECU in a modern automobile, together with advanced engine technology, makes it possible to control many aspects of the engine's operation, such as spark timing and fuel injection. The ECU may also control electronic throttle control (drive-by-wire), valve timing, boost control (in turbocharged engines), ABS, the automatic transmission, and the electronic stability control system.

One of the many ways of tuning a modern ECU is by adjusting the ignition timing advance. Higher timing may result in higher performance. However, to cope with advanced timing, one must run high-octane gasoline to avoid pre-ignition detonation or pinging. Manufacturers design for a specific timing and this may limit performance accordingly.

In addition, changing fuel maps to coincide with the stoichiometric ratio for gasoline combustion may also develop an increase in performance. Most manufactures tune for optimum emissions and fuel economy purposes which can limit performance.

This is where we come in. We will individually tune your ECU to give maximum power from the fuel you supply your car with. This will not affect your average low-speed MPG, in fact it will in most cases improve your MPG.

Another reason to change your ECU map is if there are engine, intake, or exhaust modifications to your car. These "bolt-on" modifications alter the way that the engine flows, often causing the air to fuel ratio to change. Without re-mapping the fuel tables, some of the performance gains from the modifications may not be maximised.

A common misconception is that the ECU can be tuned to provide different power maps optimized for different driving courses (e.g. race tracks). In fact, once the ECU is tuned for optimal torque at all RPM ranges, there is no reason to "de-tune" the ECU for any RPM. A poorly tuned ECU can result in decreased performance, driveability, and may even cause engine damage; this is why all our programs are road tested thoroughly.

Some Companies may claim their Chips are ‘SUPER’.

Our Chips(Re-Maps) are ‘SUPERIOR’

visit our new ECU remapping and Chip Tuning FAQ

Visit our main site

We can now De-limit:

  • Nissan 350z, Nissan Skyline.
  • Mazda RX8

Contact Us

22 High Road, BYFLEET, SURREY KT14 7QG

T: +44 (0)1932 800800
email: sales@cartronics.co.uk
Please note: that we will carry out all installations in our Surrey workshop but that we do not travel.

Chip tuning

Cars and tuning examples