Welcome to the remapping page for Herts Auto Tek Ltd, our aim is to give you the information to make a choice for whether engine remapping Hertfordshire is for you.

Remapping, or Chip tuning, is the process of changing the software to improve performance and/or economy.

When manufacturers program the software for their cars they tend to write a file which is suitable for worldwide. This means that the parameters need to be more generous allowing for differences in fuel quality, climate and altitude.

Remapping allows you to change the parameters based on the knowledge that the fuel quality is good and extremes of climate and altitude aren’t found here in the UK. The result? More power, better economy – or with turbo diesels you can even have your cake and eat it, and enjoy a mix of both!


  • 20-35% Extra Horsepower
  • 20-35% Extra Torque
  • Better throttle response
  • Smoother power delivery
  • Improved diesel economy – typically 10% or more
  • Safer overtaking
  • 30-Day Money Back Guarantee
  • Enhanced Driveability

Tuning Options

Quantum Green

Quantum Green - Copy

Quantum Green™

– Good Power & Maximum Economy
Designed to return an improved economy in turbo diesel engines.
By re-characterising the torque limits on the engine, at lower rpm’s you will benefit from additional performance and improved economy.
At higher rpm’s the software will encourage shifting up through the gearbox, to keep the engine running in its optimal window.
QuantumGreen™ is a very popular choice with large fleet owners, where the extra mpg improvement counts on the bottom line profit.

Quantum Blue

Quantum Blue

Quantum Blue™

– Hybrid & Power/Eco
The most popular remap choice, offering the best mix of power and economy in virtually all turbo diesel engines.
Designed to de-restrict the engine and open up the true torque and power range.
QuantumBlue™ offers a better driving experience while returning an improved fuel consumption figure.
Parameters are carefully managed to optimise best burn times and achieve optimum in-cylinder pressures.

Quantum Red

Quantum Red

Quantum Red™

– High Power & Ultimate Performance
Designed to fully unleash the full potential of your engine.
QuantumRed™ can be installed on both petrol and diesel vehicles.
Ideally used in situations where the extra power and torque is required for example moving extra heavy loads, running optimised acceleration, experiencing a wider torque window, or simply to enjoy your vehicle.

What is remapping?

The modern car engine is controlled by a small computer, this adjusts and changes many settings which will include timing advance, fuel delivery and turbo boost dependent on the demands of the engine. The computer known as the ECU (Engine Control Unit) has software written to suit the use of the vehicle across the world – taking into consideration fuel quality, altitude and climate. By accessing this software and making specific changes to it more power or better MPG can be gained from the engine. In the case of turbo diesel engines it is possible to achieve both!

Depending on the vehicle and type of ECU there are different techniques required to download a copy of the program, once downloaded changes are made to the coding within the software and then uploaded into the ECU.

What is Chip Tuning?

Chip Tuning is in some ways the original process for remapping cars. Previously made to change the software within the ECU, it was necessary to remove the ‘chip’, also known as the EPROM, from the circuit board and extract the program via a chip reader. The process is still used on older cars, that as a rough rule of thumb are prior to the year 2000 before the generic OBD port was introduced on to cars. So although the process is different, the overall improvements are still subject to the hidden gains within the engine.

Why Choose To Remap?

There are many reasons to remap a vehicle, the majority are to improve performance on the vehicle. One of the additional benefits which doesn’t seem to be widely known is the improvement to be had in drive-ability you get after remapping. If you are looking for better performance there will certainly be an improvement in the overall torque and power from the engine, but in additional the power delivery will be smoother with a sharper throttle response, giving a greater driving experience.

Remapping for economy (turbo diesels only) often raises the question on how the car will drive, with the concern that to achieve the economy will require the vehicle to lack performance. This certainly isn’t the case, economy is achieved by concentrating more on the torque delivery of the engine and there is a noticeable improvement in the driving experience.

30 Days no-quibble Money Back Guarantee.

The Remapping process has to improve the driving experience of all our customer. If our customer were to say, ‘there is no difference in the car performance after the Quantum Remapping’, we are happy to give the money back to the customer. But we know for certain, that would not happen with Quantum remapping.

Next Steps

Opening Hours

Mondays to Fridays
8 am – 5 pm

Late night Thursday by appointment

Herts Auto Tek
Unit A4 Front
Nup End Bus. Centre
Herts. SG3 6QJ

Tel: 01438 829000