Being internet users ourselves we know all too well how easy it is to become bogged down with an information overload, where all tuning companies look the same. We would like to assure you that Essex-Remaps is not just “another tuning company”, our tuning services have been developed by  Viezu’s in house R&D dept over the last 20 years and are among the best available in the world today.

As a Viezu dealer we benefit from their Award winning tuning services and training. As if that wasn’t enough , Viezu are the UK’s only ISO Certified tuning and training provider, Who are approved and used by the largest fleet and industry professionals across the world. All tuning is insured and comes with our money back promise.

If your tuner can’t demonstrate how they develop and test their tuning and that they conduct dyno and emissions testing (a legal requirement), you have to ask yourself how do they do it.

All tuning provided to Essex-Remaps by Viezu Technologies is dyno developed and emission tested –and Viezu will welcome you at their HQ, meet the team and see our research and development being undertaken yourself.

Essex-Remaps are a responsible tuning company, all our tuning is custom and developed with years of research and development.  We give you the choice of the level of tune you want. Whether it’s optimised mpg or enhanced performance tuning, we have the ability to reach your exact requirements. If you can’t decide between a multitude of options we also have the ability that allows you to have multiple maps available for your car at the press of a button via Viezu’s V-Switch device.


The most common of all tuning questions. It is not complicated but there are a few answers to this question, some more obvious than others.

Vehicle manufactures are in a tough position here, they have to build one vehicle for all drivers – it’s a bit like a nice suit off the shelf; it fits well, it looks smart, but it can’t be custom tailored for the end customer. Tuning is just the same – if you own a fleet of vans you may want a speed limiter or rev limiter added to help save your fuel, yet another customer may want a little more power to help with towing or heavy payloads. These sorts of changes can only be made once the vehicle is built and the customer needs something other than ‘off the shelf.’


Fuel quality – we are often asked to tune for different fuel quality, either higher or lower. Once an owner knows where his vehicle will be used and what it will be used for we can adapt the tuning for environmental, altitude and fuel quality.


And surprisingly, many manufactures do offer ECU remapping services – any showroom these days will be full of eco-tuned vehicles, often sporting a ‘blue’ badge just like our BlueOtimize tuning. With our tuning though, you don’t need a new vehicle to benefit from economy tuning.


In addition, many manufacturers offer power and performance tuning upgrades too, or offer the same engine in a range of vehicles offering different power levels. This enables customers a choice, taking account of tax banding, insurance, performance, price and economy. In most cases though the choice is controlled with software just like our tuning, but with Essex-Remaps you don’t have to decide what you want from new in the showroom, we can tailor your vehicle to your needs whenever you want.




No. A remap or any aftermarket work cannot and will not automatically invalidate a vehicle’s warranty. It’s a misconception that it will, and sometimes those that know are not always clear about this fact. It’s very common for fleet users and companies to fit a speed limiter to their vehicles. Some will use us to do this work, while other drivers may want to fit a tow-bar or upgraded sound system to their vehicle. These are common fitments, but they are aftermarket changes just like a remap – your tow-bar does not invalidate your warranty so why should your remap?


However, manufacturers of course have the right to investigate and possibly reject a warranty claim if the failure is directly related to and caused by the tuning (remember not all tuning is the same quality as Essex-Remaps). Therefore, for your total peace of mind, all Essex-Remaps tuning work is insured and guaranteed. If our tuning causes a failure inside or outside of the warranty period you are covered. It’s exactly why you should chose Essex-Remaps for all your tuning work – only Viezu’s  dealers have this depth of cover and we here at Essex-Remaps will be happy to show you and talk through the Viezu’s tuning insurance policy. We say this with confidence because of the rigorous testing regime all ECU remapping and vehicle tuning files go through, and we even give a life-time software guarantee too for reinstallation.

Should you lose your tuning files due to dealer actions or parts failure your dealer will be happy to re-install the map on to your car free of charge for as long as you own the vehicle.



Yes, owners are allowed by law to modify their vehicles, but it should be done responsibly and in accordance with local legislation. The EU Directive 2010/48/EU does stipulate that vehicle owners should not modify or alter their vehicle in a way that the emissions are increased. Essex-Remaps treats tuning very seriously – in these times of environmental scrutiny we believe the tuning industry should be both responsible and transparent in the work being carried out.


At Essex-Remaps, not only is our tuning  measured and tested to Euro 6 MOT Emission Standards, but it exceeds these standards of testing for both Nox and Sox too. Viezu’s  tuning has been independently tested on a number of occasions, and found to have no negative impact on emissions. Viezu have also opened their testing and development work and they have been inspected by the DoT (Department of Transport). We are proud of Viezu’s work and the research and development that they carry out.



Whilst the upgrade in many cases is undetectable, the responsible and correct answer to this question has to be “yes”, your insurance company should be notified of any modifications including tuning. However, the good news is many insurance companies do not penalise you for upgrades of this nature, particularly if you’re tuning for increased fuel economy.

Adrian Flux is one such company.



No, in fact quite the opposite. Even on a performance tune, if you continue to drive the car in the same way as you did before the upgrade, your fuel consumption will probably improve. Of course if you have a track day motorsport tuning map installed on the car, and you are driving the car under the conditions in which full on motorsport tuning is intended, you’re likely to find a slightly reduced MPG figure. In just about all other cases though Essex-Remaps tuning will improve your vehicle’s fuel economy.


Economy tuning can have a dramatic effect on fuel consumption with considerable improvements being achieved along with huge money savings on fuel. All Essex-Remaps fuel economy tuning has a money back promise – if you are not delighted you don’t pay for the tuning.



No, not at all if you use a Viezu dealer. Sadly some engines can be over tuned, ‘stressing’ the engine, transmission, cooling systems, brakes etc, and reducing the life span and reliability of the car. This is why it’s so important to choose the best. Choose Essex-Remaps – the research and development carried out ensures all our tuning is of the very highest standard possible.


Great care is taken to ensure that all of our tuning modifications have no detrimental effect on your car. In a lot of cases the economy tune actually helps to extend the life of components, such as the clutch and gearbox, by making the delivery of the power far less aggressive and smoothing the overall drive of the vehicle.

We can’t support, or warrant vehicles, products or services used in motorsport, track-day, competition, off-road or rally conditions. Vehicle owners who undertake such practices must accept all implication of extreme vehicle use.



There are a number of basic power upgrades available in a plug and play format or are downloadable from the web. Whilst some of these items can offer slight increases in power, they operate by merely adjusting a specified signal within the ECU by a set tolerance. It’s impossible to compare these inferior upgrades with a full rolling road re-map which measures and adjusts hundreds of signals and data files within the ECU.

We advise that these generic files and unsupported devices for sale on the web should be avoided at all cost. We’ve seen too many customers come to us after a bad experience – and there was no one else to turn to either. We’re always happy to advise on your tuning needs.



Yes that’s right, Viezu is insured not only for public liability, but also for the act of remap file writing and tuning to the value of £5million GBP. “Why such a high value?” Viezu offers tuning solutions to some of the world’s largest vehicle fleets, some with over 40,000 vehicles, we also offer support to the world’s most reputable tuning and race teams with many hundreds and thousands of pounds invested in any one single vehicle.

Our technical team offer support to over 500 dealers across 64 different countries, and we supply over 5000 tuning files per month.


Money Back Promise

We offer our customers a money back promise.


As an Essex-Remaps customer you can be totally confident that nothing is left to chance. If you have any queries please feel free to ask for a copy of Viezu’s insurance and quality policies at any time.

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Treat Your Vehicle to Optimised MPG, Enhanced Performance, Improved power Delivery and Lower Emissions