Car Remapping Van remapping 4x4 remapping MotorHome Remapping Lorry Remapping
Opening Hours
Mon8.30 to 6.00
Tue8.30 to 6.00
Wed8.30 to 6.00
Thu8.30 to 6.00
Fri8.30 to 6.00
Sat8.30 to 1.00
all major credit cards accepted
the institute of the motor industry
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Welcome to WG Tuning

  • Welcome
  • Latest News
  • What is Remapping
  • Performance
  • Economy
  • Rolling Road
  • F.A.Q.

It seems lately there is no end to the rising costs of running even the smallest of cars. Tax and insurance of course play a big part but fuel has never been so expensive.

If you could get more miles per gallon and increase the performance of your vehicle at the same time wouldn’t you be interested?

With our state of the art equipment and are technical support partner Viezu we can achieve:

  • Up to 30% more power
  • Up to 15% more fuel economy
  • Greater Torque
  • Enhanced sharper throttle response
  • Smoother more progressive power delivery
  • Undetectable (even with dealer equipment)
  • Safe reliable insurance backed procedure
  • 7 day no risk money back guarantee

Situated in Chorley, Lancashire, Weldbank Garage established since 1956 is one of the areas largest and oldest family run independent workshops.

Incorporating WG tuning we have over 25 years experience in vehicle diagnostics and engine tuning on all makes and models of vehicles from ferraris to the family run around and anything in between. We are a Bosch car service centre and are of course trained by Bosch to very high standards

We are also Viezu approved dealers specialists in vehicle remapping, tuning virtually all petrol and diesel vehicles, turbo or non turbo. Providing you with quality products and services including:

  • Performance remapping
  • Economy remapping
  • Blend remapping
  • Race tune remapping
  • Chip tuning
  • V-switch tuning boxes for petrol and diesel tuning ( unlimited switching between maps)
  • V-box diesel tuning boxes
  • Direct Shift Gearbox tuning

Please feel free to look round our website and see just how how much we can transform your vehicle With our Bespoke tuning programme you choose

why have an off the shelf vehicle when you can have one custom made to your own requirements?

Now Available

Free WiFi whilst you wait for your car

Latest News

              *********WE ARE OPEN*********

Hi guys just to let you know WE ARE OPEN for all essential servicing, repairs and safety checks to keep all key workers on the road.

Needless to say we are taking all necessary precautions to keep everyone safe against the virus..

For those self isolating we can collect your vehicle, again taking all neccessary precations to keep you and our staff as safe as possible.

We can take contactless payment and on that note don't forget to ask about our INTEREST FREE 4 MONTH PAYMENT PLAN to spread the cost...

All the very best and Stay safe


Tony and all the team at Weldbank Garage

March 27th, 2020 1:50 pm

WG tuning is pleased to announce we have joined as a founder member to the Trusted Tuner Group.
Trusted Tuners is a group dedicated to excellence in ECU Remapping, helping you find a reliable and trustworthy remapper for your vehicle with members throughout the UK.
All members offer Insured, ISO9001 accredited maps installed by IMI certified technicians with genuine licensed equipment.


February 19th, 2017 8:06 pm

Back in 2015 Weldbank garage (WG tuning) were proud winners of the best Terraclean workshop 2014 at the first national Terraclean service centre awards.
The awards are every two years and will be held again in Newcastle in the new year.

There are two catogories that require a PUBLIC VOTE...
Best service centre and Best Technician...

It would be great if we could bring an award back to Lancashire again, Please help us by voting for....

Weldbank Garage in the SERVICE CENTRE CATAGORY
Tony Waring / Stewart Waring in the BEST TECHNICIAN CATAGORY

Please click the link below to make your vote

Thanks for all your support, have a great Christmas and an even better new year...

Tony and Stewart

January 1st, 2017 9:03 pm

We are frequently asked about Terraclean and remapping especially when done together as a combo..
Its a great way of getting the best from your vehicle,...

TerraClean to restore lost efficiency and a Custom Quality Remap improving power by upto 30% and Economy by upto 20%

For many people although its a must have, there's always something else that takes priority on the monthly spend

We can now offer you 0% FINANCE on this great 2 level service

Call Tony on 01257 263993 or 07519022718 inbox or email

To qualify for 0% all you need to do is pay a 25% deposit by a valid debit card on the day the work is carried out, the balance is then payable over 3 months by 3 equal payments.

Here's how it works....EXAMPLE ONLY (prices vary)

Total cost...........£300


3 x payments.....£75

Total payment....£300
APR 0%



March 14th, 2016 10:59 pm

Another national award for Weldbank garage!!

WG tuning (AKA) weldbank garage are recent winners of the best Terraclean ‪‎workshop 2014 at the first national Terraclean service
centre awards,
the award was presented by Eddie (the eagle) Edwards in Newcastle last month.
Its the second national award WG have won this year, in February we received the Large garage of the year 2015 at the national CAT magazine's trade awards...

So if you want your vehicle Terracleaned, make your informed choice, call Tony on
01257 263993 ( workshop) or 07519022718 or email us at


June 14th, 2015 3:18 pm

Massive thanks to all who voted for us in the CAT magazine large garage of the year award 2015 held at Twickenham the home of England rugby.
Really proud to receive the award, it means a lot to the garage but its fantastic to have recognition for the Terraclean brand.
Big thanks to all our staff who make Weldbank garage what is and everyone at Terraclean for nominating us for this national award
Its our 59th year trading in Chorley as a true family firm now in its 3rd generation with next year being a massive 60 year mile stone
As I said very proud, thanks again guys..... Tony

February 23rd, 2015 9:07 pm



Weldbank garage (WG tuning) are in the final for the large garage of the year 2015 awarded by CAT magazine
three garages remain in this category and your vote may help us win!!

Please can you take the time to click on the link and
vote for us in the large garage category
Thanks in advance Tony and Stewart


January 16th, 2015 10:00 pm








Give us a call   01257 277782 begin_of_the_skype_highlighting highlighting begin_of_the_skype_highlighting n_of_the_skype_highlighting  FR end_of_the_skype_highlighting FREE end_of_the_skype_high
or email for more info....


September 2nd, 2014 4:53 pm


VAG DSG tuning now available at wg tuning,
Mercedes and BMW to follow
Get Your Tuning Really Into Gear!

FULL VAG DSG tuning is now available at your local Viezu dealer
Why would you want your DSG (Gearbox) Tuned ?

•  Up to 70% reduction in shift time in SPORT and TIPTRONIC modes, with up to 40% reduction shift time in normal DRIVE

• Fully unlock the power of an engine remap through the optimisation of the torque characteristics and thresholds within the DSG

• Torque increased from 350nm to over 550nm depending upon which level of tune required 

• Improved drive-ability and gearshift response

• Removal of the soft, lazy gear change characteristics from daily driving

• Improved gear shift timing means you spend less time waiting for the next gear during overtaking manoeuvres

• Greater and more noticeable difference between normal DRIVE and the SPORT setting. The Sport setting can be made more responsive and even aggressive if you require. This creates a completely new gearbox dynamic for the SPORT setting which truly unlocks the additional power from the engine.

• A TIPTRONIC that behaves even more like a manual gearbox. Adjustments to max rpm shift points for the track day enthusiasts. Additional power from the engine through torque manipulation in the DSG.

•  Measurable, real and proven!

• Plug and play OBD tuning, Full DSG tuning with up to 80 maps changed.   
 For more info...........
                               .......Tel 01257 277782

March 2nd, 2014 6:43 pm

DSG tuning (Direct shift gearbox)

Great launch offer
To launch our great new DSG tuning service for the VAG range we are offering a discounted price of £250 plus vat
Get your engine management remapped at the same time for our usual £295 plus vat and get the DSG tune for just £150 plus vat
(limited time only)

A tuned engine and a tuned gearbox......... what could be better!!!
call us on   01257 277782 begin_of_the_skype_highlighting FREE end_of_the_skype_hi for more info.....


March 2nd, 2014 4:27 pm


Latest Mazda news!!!!
Mazda RX8 and MX5 remapping is now available by the OBD (diagnostic port)
this vehicle untill now has always been tuned with the ECU removed and so remapped on the bench by Jtag renesas method.
This new break through allows a real value for money upgrade on these very popular models.....
give a call on 01257 277782 begin_of_the_skype_highlighting 01257 277782 FREE end_of_the_skype_highlighting

March 2nd, 2014 6:33 pm


Our new range of tuning boxes for both petrol and diesel vehicles.

Completely bespoke, we tune the box to suit you.

There are many reasons for choosing a tuning box:

Some vehicles cannot be remapped due to software issues; they may have a locked ECU such as Toyota and Lexus.

Some due to age constraints, some older vehicles cannot be remapped because they don’t
support the technology ie OBD

Another reason is your vehicle may be within its warranty period, a tuning box is ideal
because it can be removed at anytime, particularly when it’s due for a service at the dealer


They  can be supplied, installed and set up in our workshop

or supply only for self fit......... the choice is yours

Call us on 01257 277782


February 2nd, 2014 9:08 pm

If you own one of todays modern diesels you may be aware of the diesel particulate filter especially if you have encounted a warning light on your instrument panel as shown in the picture.

many main dealers and independant garages for that matter carry out forced regenerations everyday in an attempt to unblock a blocked DPF. pretty much this will solve the problem however this is not always the case, at this point they will say 'you need a new one costing ££££'s 

WG tuning can clean the DPF without removal from the vehicle at a fraction of the cost
so If your experiencing low power (limp home) with a warning light on the dash don't panic call us on 01257 277782 begin_of_the_skype_highlighting FREE 

January 22nd, 2014 8:56 pm

 New Terraclean induction , EGR and turbo cleaning up and running

Moving on from our very popular regular Terracleaning service, here is another amazing NEW terraclean tool, designed specifically for cleaning the induction EGR and turbo systems for diesels, this is a before after view inside the Inlet Manifold of a Vauxhall 1.9 CDTI. In the first pic you see heavy carbon deposits around the opening of the Manifold, the second is immediately after the cleaning process. These deposits choke the engine and reduce air flow, having a negative effect on emissions and performance. This is only one area that is cleaned, also EGR and turbo suffer similar deposits.

If you're vehicle is smokey and sluggish call us on 01257 277782 for an carbon survey of your engine.

October 14th, 2013 12:46 pm

Available very soon!!!

Coming soon to the UK, (8 to 10 weeks we think)
The new Terracean EGR cleaning system for removing stubborn carbon deposits from, EGR, Inlet Manifold incuding swirl flaps, Turbocharger and DPF. With limited availability wg tuning will be one of the first to use this incredible piece of equipment. watch this space for more information on availability

June 23rd, 2013 6:02 pm

Great day, WG tuning attend the Terraclean dealer workshop with Edd China




June 9th, 2013 10:36 am

We are now part of the RAC network of appoved garages


        Honest pricing.

        Quality work.

        Great service.

June 29th, 2013 5:35 pm

Terraclean MiST™

Have you ever thought about the air you're breathing? INSIDE YOUR VEHICLE. The Terraclean engineers did. And decided to do something about it... MiST™

Air Quality is a commonly known issue in the workplace, home and out...door environment but what about inside your vehicle. Today, your vehicles ventilation system is a prime breeding ground for living microorganisms. MiST™ is specifically engineered as the solution for treating allergens such as bacteria, mildew and mold in the ventilation system and the passenger cabin. Unlike cabin air filters which are barriers designed to trap most air-borne particles such as pollen, fumes and chemical pollutants coming from the outside, MiST™ treats the living microorganisms INSIDE your vehicle. Next time you are in getting your vehicle serviced, ask for MiST™ by name - It's a fast, inexpensive way to improve your vehicle's in car air quality.

MiST is a great treatment for improving the air quality inside your car, van or truck. Having trouble breathing inside your vehicle, feeling fatigue while driving, maybe it's the air you are breathing. Drivers and passengers are spending much more time in their vehicles with the windows closed - turning on the air conditioning in the summer and heat in the winter.
This fantastic service NEW TO THE UK............
  ..........available NOW at Weldbank Garage

April 8th, 2013 8:49 pm

Brand new and NOW AVAILABLE...... Terraclean for inside your car.......

Do you have odd smells (musty)
Does it take a long time to clear the windscreen
Do you have flu like symtoms when you drive:

Running eyes

Musty smells are caused by fungal bacteria and micro organisms that grow on the evaporator of your cars air conditioning system

When systems are not used for long periods of time, the bacteria is allowed to grow causing these alergies

When your A/C is switched on the the bacteria is breathed in

SPRING CLEAN the inside of your car with TERRACLEAN

call us for more information about this inexpensive solution to a real problem

Tel 01257 277782 begin_of_the_skype_highlighting 01257 277782 FREE end_of_the_skype_highlighting
or go to our webpage for more interesting facts

  A fully operarational A/C system will allow Hay fever sufferers to travel in comfort by keeping all windows closed yet staying cool.

April 2nd, 2013 10:36 pm

Free WI-FI

                                                                 available for all our customers waiting for any of the many services or repairs we offer, sometimes having your car in a garage can be a hassle and interupt your busy day, make use of the time while your waiting and benifit from this great new facility.

March 2nd, 2013 9:37 pm

Terraclean  national TV adverts

Through February and March Terraclean have launched the first TV advertising campaign with adverts showing nationally. The adverts are available to view on their website and our sites and, also available to view are interviews with members of the public featured in the adverts (not actors) in which they talk in more detail about the impact the TerraClean service has had upon the performance of their car.
The adverts will start on tuesday night in between the new wheeler dealer series on sky tv, here is just one example of whats to come

For more about the Terraclean challenge and interviews with Edd go to our youtube channel

March 7th, 2013 11:13 pm

Great weekend at the Terraclean dealer conference with the guys at Terraclean and Ranstad and of course Edd China

Great to meet Edd and so pleased to be working with him and the  Terraclean network in the Terraclean challenge.
This will be aired on national TV during February & March so watch this space......

February 10th, 2013 9:37 pm

HUGE GAP FILLED....... Honda petrol remapping now available at wg tuning
we have been tuning diesel Hondas for some time now but petrol tuning is now available incuding type R civic

February 4th, 2013 9:29 pm


We are now terraclean dealers, based in chorley lancashire we have both petrol and diesel machines and are only a short drive away for anyone in the northwest, an incredible process TerraClean is an advanced and effective decarbonising solution....restore performance, restore mpg and reduce exhaust emissions, an amazing tool that really does clean your engine. An inexpensive solution to a very big problem with todays modern engines.......


Want to release some more power, mpg and lower exhaust emissions from your engine, then decarbonise it!!

Terraclean is like colonic irrigation for your engine, we interupt your fuel supply and run your engine on negatively charged special fuel held within our machine and when combusted will react with the positively charged carbon in your engine cleaning from the injector tip, the complete combustion chamber, including piston crown and compression ring(s), inlet and exhaust valves, EGR valve, turbo turbine and wastegate, lambda sensors and catalyst turning the carbon into a mist and exiting out the back, far more affective than chemical cleaners because it actually works!!

the process takes about an hour, sure performance upgrades are great and we carry out remaps every day but why tune on a restricted engine

terraclean prices start from £90 plus vat


June 29th, 2013 5:36 pm

NEW SERVICE available at wg tuning

ECU microchip tuning for older vehicles not supported by obd (diagnostic plug remapping) in short we can now tune very early management systems fitted to both petrol and diesels as far back as the 80's if you've got a classic give us a ring on 01257 277782

January 14th, 2013 10:24 pm

A great rolling road day with the unphased group         

A selection of the 8 cars tested on the day.............................................big thanks to Josh for organising the day................. .........................................................   

unphased are a northwest german and vag group est 2008

January 8th, 2013 11:15 pm


May we take this opportunity to wish all our customers a Happy Christmas and a prosperous New Year and thank you for your custom during 2012

December 11th, 2012 11:12 pm

Got a Speed limiter on your van ?

Are you limited to 70 mph, there are many fleet vans out there resold with speed limiters still enabled, we can remove the limiter, combine it with a remap and get more power, more torque and  better fuel economy


November 27th, 2012 10:48 pm

Great rolling road day with the vxr group

Great day with the vxr group, good turn out with many cool looking cars, was some pretty good results produced over the 16 cars a mix of astra and corsa vxr's with some other vehicles joining the event, some faults were actually highlighted on the dyno as well. cheers guys and big thanks to Damo for organising it, here's just a few from the day

January 8th, 2013 11:14 pm

November 7th, 2012 11:09 pm

Major fleet contract for viezu technologies

BT Fleet is currently remapping 24,000 of its light commercial vehicles to improve fuel consumption and reduce its CO2 output.

Every vehicle from small vans through to larger Transit chassis-cab vans are being tuned using an upgrade programme range from vehicle tuning and ECU remapping specialist Viezu Technologies.

BT Fleet hopes to achieve savings of around £3m as a result of the tuning solutions which limit throttle, revs, speed and power.

Steve Watson, Senior Innovation and Design Specialist for BT Fleet, believes that remapping the company’s current fleet for better economy and environmental performance “makes complete sense”.

He commented: “It’s not just these benefits which make it appealing. Once we saw what was technically possible, we crunched the numbers and the business case also stacked up.”

Technical partner Viezu Technologies has developed bespoke software files for each vehiclePaul Busby, CEO of Viezu Technologies, added: “Vehicle remapping offers fleets a host of opportunities and we’re being increasingly asked by companies like BT to help them achieve their own environmental and cost reduction targets.

“With an ISO certified process and a potential payback period of just three months, any technical risks are minimised and rewards can be felt almost instantaneously.”

More than 5,000 of BT Fleet’s vehicles have already been remapped and with the remainder expected to be completed by the end of the year.

As you can imagine extensive testing was carried out before the contract was awarded and Viezu were proven to be the best fuel saving remappers on the test. WG tuning are proud to be viezu dealers also with many years experience with both petrol and diesel management systems if its economy your after let viezu and wg tuning get the best from your vehicle....ring 01257 277782 for further details

November 5th, 2012 11:05 pm

Nissan navara tuning and ecu remapping with viezu and wg tuning

October 2nd, 2012 10:39 pm

Denso renesas ecu's

Recent investment in new equipment now allows us to tune Denso renesas ecu's without soldering direct to the board on mazdas nissans mitsubishi and much much more!!!

September 25th, 2012 11:06 pm

VAG 1.6 TDI remapping now available

With our latest software release, we can now remap these vehicles via the obd port, however it would seem this protocol is not so straight foward but not insurmountable the ecu must be removed first to unlock, but then can be refitted to the vehicle and tuned via obd..........

October 19th, 2012 9:05 pm

See us this weekend at the Woodvale rally Southport 28 & 29th July

July 23rd, 2012 10:26 pm

Constantly investing in tools to do the job

We have just added to our already comprehensive list of diagnostic tools. We now cover 15 vehicle manufactures with main dealer diagnostic capability allowing us to flash programme ECU’s, adapt/configure new parts, key coding and much, much more, just as the dealer does covering:

Audi – VW -  Seat – Skoda - Vauxhall  - Saab -  Toyota

Nissan – Renault – Peugeot – Citroen – Ford - Mazda

Jaguar – Landrover

If your vehicle isn’t listed don’t worry we have multi vehicle scanners, just call us
we’ll be more than happy to help.

June 30th, 2012 7:55 pm

Mazda 5 and 6 diesel remapping now available via obd (diagnostic link)

We can not only remap these vehicles, but can successfully delete the troublesome DPF on them, currently causing big headaches for owners

Please call for details.....

June 6th, 2012 11:14 pm

WG tuning offer a full range of tuning

incuding OBD, BDM and TRICORE. What does this mean for you? Many remapping companies are limited in vehicle coverage because OBD tuning (via diagnostic socket) is the only option available to them. Petrol and diesel vehicles made post 2009-10, and even some prior to this can only be benched tuned (ecu removed from the vehicle). When making your choice, choose the best, choose wg tuning........

May 15th, 2012 11:33 pm

Citroen DS3 remapping now available for both petrol and diesel models

contact us for further details......... 

May 9th, 2012 10:46 pm


Like us enough for a free remap

just like our wg tuning facebook page and your automatically entered into our free remap competition here

May 9th, 2012 3:55 pm

Great deals on multiple car remapping for families, groups of friends and fleets

contact us for further details......... 

May 9th, 2012 4:00 pm

What is Remapping?Viezu Logo

We have more than 25 years experience with fuel injected vehicles including today’s complex engine management controlled systems fitted to both petrol and diesels.

These systems were virtually un-tunable till now!!

If you own a petrol or diesel vehicle aged 1999 or later it can be remapped

The Tuning Process or Remapping:

  • The modern engine is electronically controlled by sensors within the engine
  • Sensors send signals to an onboard computer which uses the data to determine performance
  • The onboard computer or ECU rapidly and continuously adjusts parameters to suit the varying driving conditions
  • We can make enhancements to the ECUs programme which improves how it uses data from the sensors delivering results which are otherwise unobtainable.

How is this done?

Viezu Remapping
  • Prior to any work we always carry out diagnostic and rolling road checks (Optional two wheel drive only) to ensure all is well with your vehicle.
  • We will then discuss the type of remap you require or advise you if you’re not sure.
  • At this point using our remapping software we extract the tuning data file held within the ECU.
  • The file is then sent via the internet to viezu who will optimise the file pushing out the parameters held within it, parameters set by the manufacture. However this is done in a controlled manner with experience gained over many years in research and development using rolling roads and emissions analysis.
  • Usually in less than 1 hour the enhanced file is returned to us and is then uploaded to the ECU via our software.
  • We then recheck the system and power levels where possible and that’s it job done in less than two hours!!

The Remapping process is completely bespoke so you can now choose how you want your vehicle to drive;

  • It can be Tuned for Power and performance
  • It can be Tuned for Economy and reduced carbon emissions
  • Or a perfect Blend of the Two

There are many reasons for different remaps such as you may tow a caravan and want more torque, you may run a fleet of vehicles and want more economy or you just want a better driving experience the choice is yours!!

Please note every remap is written individually. We do not use generic or stored files to be used over and over again. Each file is written by the technical team based on your requirements at Viezu Technologies. We are in direct contact with the file writers who will provide a quality bespoke tuning file to be uploaded to your vehicle via the o.b.d. port.

The results are truly unbelievable and will be reflected by the smile on your face.

Please Call 01257 277782 or e-mail us at for more details

Tuning for performance

We are a very well equipped workshop using the latest cutting edge technology to cope with todays modern vehicles with our Bosch FLA rolling road and state of the art car ECU remapping Software. We can carry out performance remapping and chip tuning to most petrol or diesel production cars, vans 4x4’s, motorhomes and trucks.

A Power Map

Change your car without changing your car!

Power Tuning is essential for those drivers who feel there vehicle is a not living up to its potential. By increasing the power of your vehicle you are providing yourself with a car that is safer for overtaking, more pleasurable to drive and puts the smile back on your face - without the outlay for a new vehicle

We can achieve:

  • More power
  • Greater Torque
  • Enhanced, sharper throttle response
  • Smoother, more progressive delivery of power
  • Reliable and safe procedure

Whether your car be a small petrol engine or a big muscle car, there's always power to be found within the engine software.

Power Map

The benefits of 6hp on a 1.0 litre petrol engine is as noticeable to one driver as it is for the driver of a 3.6 twin turbo with an extra 65hp+.

Be it a track day supercar or the car used for the school run the benefits of a Power Tune are endless.

With our state of the art remapping sorftware and Bosch rolling road we can make substantial power gains. Special offers are available for clubs, trade and group bookings for Ecu upgrades and/ or performance power runs.

Please Call 01257 277782 or e-mail us at for more details

Economy Tuning

Save fuel, save money and reduce your carbon footprint with our Economy tuning services and products, available for most production cars, 4x4’s, vans, motorhomes and trucks

Co2 Footprint
  • Up to 15% improved fuel economy (sometimes more for commercial applications)
  • Improved MPG- Reduced emissions (subject to Vehicle type)
  • Enhanced sharper throttle response
  • Smoother more progressive power delivery
  • Some Power and Torque improvements
  • Undetectable

The technicians at Viezu have developed a unique range of tuning services which can deliver the very best in economy tuning. They provide significant gains in fuel efficiency whilst improving the feel and drive-ability of the vehicle.

All manufacturers have to limit the power and mpg of their vehicles in order to adhere to the many different markets they face. From simple things such as differing fuel grades around the world to issues with marketing and affordability. So your car will always underperform both for power and for fuel efficiency.

We simplify the whole issue with an expertly optimized Economy Tune on your vehicle, delivering the optimum economy for the vehicle and providing a delightful increase to the power at the same time.

The most important benefit you will see is the significant fuel cost savings from an Eco Remap, and it doesn't matter whatever the price of fuel is once your vehicle is properly tuned the more you drive with an Economy Tune, the more you SAVE!

Please Call 01257 277782 or e-mail us at for more detail

Rolling Road

kit car remappingThe Rolling road we use is a computerised 2 wheel drive Bosch FLA 203 and allows us to carry out checks to your vehicle in a safe and controlled manner in our modern well equipped workshop.

We are able to test your vehicle in as close to “real life” situations as possible and therefore drive your vehicle at any speed or load condition, and used in conjunction with other test equipment can quickly determine even the most illusive of faults. It can also be used for tuning for optimum power or economy using our bespoke remapping software all within a workshop environment.

Viezu TechnologiesWhether your vehicle is New, Historic or modified our Bosch Rolling Road allows us to test...

  • Power output. Measured at the wheel (in K.W. or B.H.P.)
  • Power output measured at the flywheel. (in K.W. or B.H.P.)
  • Torque measured at the wheel (measured in Nm or lbs ft)
  • Torque measured the flywheel (measured in Nm or lbs ft)
  • Speedometer accuracy measured in kilometres or MPH
  • Check boost pressure (turbo and supercharged vehicles)
  • Measure power output whilst under load (using the retarder, programmable to any desired road speed).
  • Check for hesitation, flat spots or misfires in real life road conditions without leaving the workshop.

Power run

A Power Run is a simple test we can carry out to show the BHP and torque your car is producing at the wheels. The rolling roads computer will also approximate the power at the flywheel. Your car will be put on the rollers and two to three runs will be done to make sure that any particular run does not give an inconsistent or freak result.

Rolling Road Shootouts

We are more than happy to host rolling road shootout days for clubs or groups of individuals, great fun and also competitive, who will produce the most power on the day? We require a minimum of 10 cars in your group and would provide a discount to that affect.

All Data is supported by Printouts……………….

Please Call 01257 277782 or e-mail us at for more details

Why Choose Viezu?

Viezu is not just "another tuning outfit": their tuning services have been developed over the last 20 years and are some of the very best available in the world today.

Viezu and WG tuning together can give you the choice of the level of tune you want for your vehicle. Be it performance or economy tuning, we have the ability to reach your exact requirements. If you can't decide between a multitude of options, then fear not, as we also have an option that allows you to have multiple maps available for your car at the press of a button - our V-Switch device.

Will re-mapping invalidate my vehicle's warranty?

The way Viezu files reprogramme a vehicle is completely undetectable. All codes and diagnostics that a WG Tuning may read will remain exactly the same. We say it with confidence because of the rigorous testing regime all files go through, and we even give a 24 month software warranty to you. But be warned - not all tuning companies can say this.

Can the vehicle be put back to its standard BHP?

Of course it can and WG tuning will offer this service free of charge. But we'll be very surprised if that's what you want after taking control of your vehicle's performance.

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

How long does it take to upgrade the ECU?

The remap upgrade normally takes under 2 hours to complete including a full diagnostic and rolling road test (optional, 2 wheel drive only)

What is Chip tuning?

Chip tuning is the physical replacement of the ECU chip, it requires removing the ECU to gain access to the circuit board although not as common and is more intrusive than remapping, it is sometimes necessary for more unusual type vehicles or vehicles built prior to 1999.

Should I tell my insurance company?

Whilst the upgrade is undetectable, the responsible answer to this question has to be "yes", your insurance company should be notified. However, many insurance companies do not penalise you for upgrades of this nature, particularly if you're tuning for increased economy.

Adrian Flux is one such company.

Will my fuel consumption go up after an upgrade?

No, in fact quite the opposite. Even on a performance tune, if you continue to drive the vehicle 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 vehicle and you are driving the vehicle 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.

Will the life span of my engine be reduced?

No, not at all if you use a Viezu dealer such as WG tuning. Sadly some engines can be over tuned, "stressing" the engine, transmission and cooling systems, etc, reducing the life span and reliability of the car. This is why it's so important to choose the best – choose Viezu, choose WG tuning.

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.

Why don't the manufacturers upgrade the ECU from the factory?

In short, cost, your vehicle is a global product it’s easier for the manufacture to produce two or three different maps with different bhp such as 90, 110 and 130 for one engine than develop three different engines.

Other reasons include varying qualities of fuel available throughout the world. Your engine must cope with poor fuels, lack of servicing and general abuse. If you service your car to the manufacturers specification and use good quality fuels, as found in the UK the engine can be optimized for better performance and efficiency without affecting the reliability of your engine.

Are plug and play re-maps and files sold on E-bay any good?

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.

Please Call 01257 277782 or e-mail us at for more details