Quick shipping, very helpful staff, and a great little product, would highly recommend, fitting is pretty simple and easy to remove (car depending). Dont be fooled by the cheap ebay alternative they are not the same, I tested this to improve throttle response, and it works really well. Good work

Used my old box which they retuned. Excellent service, excellent performance!

Quickest install, huge power gains and on setting one and when my car is in ECO mode I actally got a 5-7mpg increase! Highly recommend this product! Very smooth power transition between gears no hesitation or jerking, suits the car very well!

After doing some research on tuning kits & talking to the guys at tdi, we decided to go ahead and purchase our first kit for a Range Rover Sport 3.0 HSE. The purchase was easy and it arrived very quickly! On opening the box, the equipment was well packaged and there was also a detailed photographic instruction manual included which would prove to be helpful. We set to work on the range rover sport and it took less than 20 mins from start to finish - wow! We opted for the upgraded tuning box which allows us to control the box via Bluetooth on the mobile phone. This is very good as we can control what setting we want the car to be at which is easier than lifting the bonnet each time. Once the kit was installed nearly and secure, we put the car to work and slowly increased the settings over a period of time that was suggested by tdi. We have done some long journeys since the install and can confirm that the mpg is much better and also the acceleration lag that is typical on a range rover has become much smoother and far more responsive. We have since installed these kits on several other range rover models with excellent results and happy clients. We would highly recommend tdi tuning boxes as they can easily be removed if the car is going into a dealership for work Still under warranty. Overall - 10/10 & a pleasure to deal with the guys at tdi!

Got a 2022 samyoung musso pickup 180 bhp 420nm stock all of 5 minutes to fit the tuning box the power is a joke maybe sitting at 500nm 235bhp cruise at 120mph rocked of line put you toe down your up 90mph in crack did not want a remap for the warranty ,, Connect to my phone1234567 maps over the moon

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.