Good highly rated

Excellent service and great product. Would highly recommend.

I used TDI a while back for a tuning box. I found their initial service really good and they took the time to explain the system and what would be supplied. What really impressed was the after sales support and customer service. It's a great product which I fitted easily but the real plus point is the people that are on hand should you need them afterwards. Would use again and have recommended them several times since.

Hi I got my tdi tuning box fitted a couple of months ago and I'm really pleased with it my gear change is so much better and quicker and drives alot smoother. Thanks guys at tdi tuning.

Impressed with the products. Well priced.

Had tuning box fitted to my 2017 Honda Civic 1.0 . The car performs very well and you can feel the extra power around 2000rpm. I have it on mode 7 most of the time but have also found mode 4 drives well. The car generally feels smoother than before. Getting an extra 30 miles or so on a full tank. Ive got the Bluetooth model and connects very easily when sitting in the car. The Fitting took half hour at Chelmsford ,

Bought a 3 channel tdi tuning box for my VW Golf GTD MK7, standard 180hp and claimed from the box was a increase to 240. Unlikely but I knew this before buying as not all cars will reach that level of performance and to be fair I havent dyno'd the car so I cant say for sure if its under 240 but from changing just 3 sensors it does seem like the car they had used may have reached 240 but not mine. That aside, there is a good noticeable difference in the performance, the torque has definitely increased. It's only been a month so far and there hasn't been any issues so I'm pleased with it for now. Ive tried all the settings and there is a difference from setting 4 onwards. 7 is absolutely brutal, it does feel like it will wear out my dsg clutch packs if im not careful but put it on any setting below that and it works perfectly. Can't speak for MPG either as I havent tried to drive it economically yet, just been enjoying the "new car" feeling and the immense increase in torque. So far I am very pleased with this product as it is producing a noticeable improvement, it may not be claimed figures but its definitely made the car push more than 210hp without a doubt and im still pleased with it. Definitely recommend the bluetooth upgraded functionality as it just saves the hassle of having to pop the hood to change the box's map setting. 4 stars for now as I have only had it for a month but I will definitely update this after having it a while longer. Will recommend this to anyone who wants to get chip tuning rather than a ECU remap. Great product.

Went to get TDI Tuning box installed at Chelmsford for my Jag XF 3.0d S. Folks were friendly yet professional - "Chip" installed my unit and was very helpful afterwards showing what he had done as well as answering questions from myself. Really looked forward to the 120mile drive back. The power increase was amazing. . . you really can tell the difference. Now I have even more power as well as frugality :-) Well done TDI-Tuning.

Just wanted to say a big thank you to tdi tuning.your tuning box has transformed my van so much.from my initial phone call to them to me asking technical assistance where to locate a plug on my engine.faultless first class service.

I ordered one of these for my 520D, I was a little sceptical with the claimed improvements, I had no need to be though. The car is transformed, the torque is unbelievable. Delivery was quick and was easy to fit. The only thing I haven’t seen are the consumption improvements suggested.

third time i have used these guys and as usual they did not disappoint. i had my last box remapped for my new car, and the technicians helped out with where to install. would and do recommend to anyone wanting to have a more powerful efficient car.

it is great!

Dealing with TDI Tuning was very straight forward. My box arrived earlier than promised, complete with full and simple fitment instructions and I managed to get it installed in about 20 minutes. As per the recommended advice I took the car for a 50 mile round trip to ‘bed’ in the system and allow the car to adapt. Even in the setup setting of level 4 I could feel a difference in the responsiveness and smoothness of my Jaguar XF. Two months later and I can honestly say the difference in performance is massive. Under hard acceleration I get pushed back into my seat and the car picks up speed very quickly to the point where getting points is a probability. Day to day my car has been pleasure to use and exploit. Fuel economy has also improved which is an added bonus. All in all, TDI have delivered exactly what I was looking for and come highly recommended.