Vehicle Tuning & Re-mapping FAQs

Plug and Play Re-maps and Files Sold on E-bay, any Good?cross graphic

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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.

Should I tell my Insurance Company?cross graphic

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.

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What is involved in tuning a Nissan Navara?cross graphic

The last 15 years have seen pickups go from workhorse to lifestyle vehicle, but the Navara has never strayed too far from its practical roots and gets pretty good reviews from the critics.

Having had a lot of experience Tuning Nissans I will be honest with our findings.

We have found that the best tune is our Performance Tune, this improves the drivability of the vehicle to no end, better acceleration, smoother drive, a lot
less gear changes when towing or going up hills. It does not improve the MPG if the vehicle is loaded or towing but there is about a 5% fuel saving when not loaded.

We fine tune to ensure that the map is bespoke, as we do not supply generic maps and guarantee that every tune is customised to suit your driving style and needs.
The gains that are achievable are,

Power Tune = 35 Bhp and 70 Nm Torque increase
With a fuel saving of 5% achievable.

Fuel savings can only be achieved with a “like for like” driving style
All tuning is insured and comes with our 30 day money back guarantee. I would also like to put your mind at rest with regards to the ECU being over written at a service or back at the main dealer, as long as you own the vehicle will re map your vehicle to your chosen tune at no extra charge.

With a JTAG tune

The Navara is challlanging to remap as it is needs "open heart surgery" to get it right. Many owners have tried a tuning box but have experianced it to be unreliable. We have had the experiance to do a remap via the open ECU with great results.

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Why choose United Tuning?cross graphic

Having been in the motor trade for 4 generations, established in Shrewsbury since 1992, we understand the importance of quality, service and credibility this is why we have become the Shropshire agent for Viezu Technologies.

Award winning tuning services, Viezu is the UK’s only ISO certified tuning and training provider, who are 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.

Viezu tuning and ECU remapping is dyno developed, and emission tested, which is a legal requirement. All our tuning is custom and developed with years of research and development, giving you the choice of the level of tune you want. Be it performance or economy tuning, we have the ability to reach your exact requirements.

Why don't Vehicle Manufactures Tune their Vehicles?cross graphic

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, its 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 sort 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 Viezu 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.

Will my Fuel Consumption go up After an Upgrade?cross graphic

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 map installed on the car and you are driving the car under the conditions with which a track map is intended you're likely to find a slightly reduced mpg figure.

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

Will Re-mapping Invalidate my Car's Warranty?cross graphic

However, manufactures of course have the right to investigate and possibly reject a warranty claim if the failure is directly related too and caused by the tuning, (remember not all tuning is the same quality as Viezu) Therefor, for your total peace of mind, all Viezu 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 Viezu for all your tuning work, only Viezu dealers have this depth of cover and we will be happy to show you and talk through the Viezu 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 we will be happy to re-install the map onto your car free of charge for as long as you own the vehicle.

Will the Life Span of my Engine be Reduced?cross graphic

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 Viezu, the research and development we carry out ensures all our tuning is of the very highest standard possible.

We take great care to ensure that all of our 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.