Customer Testimonials

Viezu Approved Dealer Technical Support

I just wanted to get in touch to let you know how impressed I was with the technical support I received on Tuesday.

Your technical team were superb throughout the whole afternoon and well into the evening as we figured it all out, this really reaffirmed to me why I chose Viezu as my supplier. I thought it would be worth firing an email over to let you know. Great tech support, much appreciated.

All the best, Adam


Jaguar XJR Restoration Project


The breakers yard could have been calling, but the owner, Willie, took the stance, if we could get it through the MOT and fix the gearbox without breaking the bank, maybe she was worth a little more time.



We were delighted to be given the opportunity with this Jaguar XJR, to give her a new lease of life; sometimes when they get a little tired it’s easier to consider selling them on, this old girl came in to us with a failed MOT and a gearbox that would not hold in gear. 

Mission completed! and Willie is delighted.  


Now she has gone on to have a full makeover, paintwork refurbishment, trim and wheels too, as well and full mechanical refit and upgrades.  She is literally better than new. We cried like babies when it was time for her to go safely home with Papa Willie.  

Jaguar XK V-Switch Upgrade: DIY Tuning Device

MAIL ORDER remaps!

Michael is enjoying his Jaguar XK that little bit more AND WE LOVE HIM FOR IT... THANK YOU FOR THE GREAT PIC.

Hi Alasdair, Just back from a small weekend tour. Well, you were absolutely right. Quite a difference! Engine very smooth and more responsive all through the Rev range. Seems more economical too, which is a bonus.  Switching to dynamic mode available on the car really starts the fireworks and unleashes the true V8 snarl - love it !!

Thank you and kind regards, Michael




Aston Martin Vantage V12 Carbon Bonnet Vents


Lovely stuff, I can confirm I have received the carbon vents for my V12 bonnet, and I have to say I'm very pleased!  The carbon weave finish is excellent, and the fitment is very good! You'll be glad to hear I'm one happy customer and I thank you so much for all your help along the way!  

Aston Martin Vantage V12 Carbon Bonnet VentsDo you do any other carbon products for the Aston Martin Vantage? I have a lot fitted already, but its nice to know if there are any others! Kind regards,  Adam.

Viezu Range Rover SVR Upgrade

Viezu remapped Range Rover SVR with supercharger pulley upgrade

I left your premises in my upgraded Range Rover SVR and drove it straight to Liverpool: 125 miles on all kinds of roads. 

Very first impressions? Nothing. No extra noise or harshness, the same smoothness I had enjoyed so much. Then came the first de-restricted stretch and the extra torque was immediately obvious. Acceleration from 50-70mph seemed almost instant.  Applying full throttle resulted in savage acceleration like I have never experienced before except in Concorde, taking off from Heathrow on full afterburner. Mind you, the SVR was a lot quieter than Concorde! The difference from standard is genuinely dramatic and really very intoxicating. I failed to find even the slightest drawback from your work. The power delivery is smooth, and feels perfectly developed and integrated with the rest of the vehicle.

That’s not all.

Range Rover SVR Tuning and remapping I tested the fuel consumption from your place to Liverpool city centre. The computer showed an average of 30.0 mpg. This amazed me as I have never had a reading better than 25.5 mpg on similar journeys before your Viezu upgrades were fitted. Something for nothing then? It certainly looks like it! 

Many thanks to you and your team. This was a job really well done, and at an affordable price. Tim


Viezu Honda Accord Type S Remapped

Hello Viezu... just a quick thank you for remapping my Honda Accord type s , I was sceptical about what difference I would notice, wow what a difference! !!! Most noted in mid range and lack of having to change down, 180bhp up to 220bhp big grin factor for an oil burner !!!!! . Thanks again Dale


Viezu Jaguar XKR Upgrade

Just to let you know that the car is driving beautifully and that I am more than impressed with the work carried out and the net result.The entire package feels thoroughly developed and is perfectly balanced in relation to the rest of the vehicle,particularly the gearbox.The performance boost is ‘slingshot’ and nothing short of stunning but never at the expense of refinement,preserving the car’s essential duality as you promised.The noise is addictive,ranging from deep burble to loud shriek with controlled popping inbetween which allows me to play the National Anthem using the paddle shifts.This is the now quite simply the perfect XKR and the car it should always have been and as a result you have also delivered on the big grin you guaranteed....

... congratulations on your recent Autocar article....

Kind regards,James.


fleet van tuning

BT – 24,000 vans tuned with Viezu BlueOptimize
Viezu – Approved and Partnered with BT Fleet to tune 24,000 vehicles, in 4 months, delivering an estimated £4milion fuel saving per year. 

HGV Tuning economy

“Viezu were very helpful, there was no pressure to buy, and the free offer gave us the chance to test the tuning in our own time on our own vehicles. All our vehicles have now been tuned."


Sunday Times car tuning

The Sunday times agreed that Viezu economy tuning could help motorists reduce their fuel bills.

“The V-Switch made by Viezu connects to the car's engine management system and remaps it so that it can be reset for improved performance or fuel saving, increasing fuel efficiency by up to 15%"

approved car tuning

Quentin Wilson says if you want to increase your MPG by up to 20%, then you should fit a Viezu Tuning V-Box.
“It takes less that 45 minutes to fit, and it will give you improved throttle response and more power, with prices from £299”

Viezu car tuning

Viezu Tuning, tested and recommended by Redline magazine

"On the road the BMW immediately felt more responsive with much more mid-range power. Where we would normally change down to overtake, we found we could simply leave it in gear: it was impressive stuff. After driving it over 1000 miles since the remap it's faster, more fun and also more efficient, returning over 49MPG. Very impressive” Steve Grigg Redline Magazine BMW320" 

BMW tuning Viezu

“Viezu have mapped 2 of our magazine's feature cars, firstly a 328i and secondly a 520i. On each occasion the work has been first rate, we even use them for technical support issues when readers of the magazine write in with questions, as the technical backup is first rate."

Paul Wager
Editor of Total BMW Magazine.

Land Rover tuning

There are lots of companies that will sell you a one-size-fits-all chip off the shelf, but they assured me I would get a tune to get the best out of my engine, I found I could actually talk to them and that they obviously knew what they were talking about.

Rob Dubsky – Quoted in Land Rover Enthusiast

car tuning and ecu rmapping viezu

The increased torque levels makes the car much livelier all round, over 2000rpm and all the way to 5000 it really pulls, and sounds really good too.

Will Holman – PPC BMW 525 

Van tuning

The van suffered from low down power when loaded, I was really impressed by the way you tailored the map to our needs, and with the speed of the service, we would not hesitate to recommend your services to anyone looking for improvements to their cars and vans.

Thank you for tuning my Focus, I am truly suprised at the results. Whist I expected an improvement, the increase in power is easily identifiable, there has been a noticeable significant increase in both the power and the torque.

In addition to the improvement in performance there has been a staggering reduction in fuel consumption, I drive many miles each year and have been averaging 43/44 MPG, since your tuning this has increased to 51/52 MPG, an increase of nearly 20%

Mike Rudge - Ford Focus 

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