Bought the TDI Tuning box for my MG 6 1.8 Turbo petrol. Easy to fit and has transformed the car. The power delivery is a lot smoother and low rev performance is increased.

I choose the twin channel set up for my 2016 BMW 220d M Sport, taking my BHP to around 250bhp from 187bhp and 488 torques from 400. My car's performance has hit heights I'd never expected. I'm currently on the "optimum setting" and the car is savage!...I still have a further 3 extra settings to explore for further performance! Can't wait to see the results of that, if "optimal" is anything to go by. I had initial set up issues (my fault) but the guys at TDI Tuning were instantly on hand to help me out. So far, so great!

Bought a chip kit for my Audi at 2.5tdi, took 5mins to fit. Power increase is well noticeable! Well chuffed. Would recommend that anyone looking for plug n play chip that they check out TDI TUNING. Well worth it

What a fantastic product! I purchased a VW T6 Van in April this year after a month I realised that the MPG that VW quoted was far far from realistic. After seeing an advert for this product I thought I would give it ago. For a bolt on product that is only £360 I am getting around 5MPG more on its most powerful setting and saving around £8 a week in fuel! I also had it fitted free of charge at the Chelmsford HQ and the service I received was far beyond what I was expecting. They really could not do enough for you!

Got one of the twin channel tuning boxes fitted to my A1 on saturday although the wrong loom was originally sent out i made the journey to get the right one and have it fitted for free at tdi tuning, couldnt recommend them more the box is great and i got to run it in as they instruct you to on my journey home, now running it on the highest setting and its made my car a completely different car, and the best thing is i will be sending it back to be reprogrammed when i get my next car, top class company

I bought a tuning box for my c250 and it's working a treat. It was very easy to fit and the difference is fenomninal power is increased massively and it's really smooth and doesn't kick out any smoke. Brilliant product highly recommend

I purchased a crtd2 for my Kia rio 1.1. First impressions weren't great, didn't notice much difference. I did what most stupid blokes would do and whacked it on to the most powerful setting and certainly noticed a difference then! Unfortunately fuel economy took a nose dive in that setting ad well! Back on the 'optimal' middle setting again and after few hundred miles fuel economy has improved by around 7mpg and it feels a bit perkier than before. I bought this to save fuel though, not to go fast (it's a 1.1 after all) and I'm getting around 80mpg on my daily commute. Good service, quick response from the online advisors.

Over a week ago I picked up my tuning box for my ford s max 1.8tdci. Plugged it in and drove home what a big difference the response on my Excelerator was impressive. And my box was set only on middle setting. I've since moved up one more setting again I was very happy. Economical with more power what else can I want. Thank you great service. Recommended ⭐️⭐️⭐️⭐️⭐️

Over a week ago I picked up my tuning box for my ford s max 1.8tdci. Plugged it in and drove home what a big difference the response on my Excelerator was impressive. And my box was set only on middle setting. I've since moved up one more setting again I was very happy. Economical with more power what else can I want. Thank you great service. Recommended ⭐️⭐️⭐️⭐️⭐️

Fitted one to a Mitsubishi l200 , it has eliminated acceleration lag completely and power is way up , was sceptical when I bought it but we'll worth it , definitely works

On an old lt35 vw van work horse it has transformed the driving experience! Pulls so much better in higher gears so looking forward to the increased fuel economy!

Just fitted my CRTD2 Twin Channel diesel tuning box to my Mk3 Octavia VRS and the results are already fantastic on the "Optimal" setting. I can't wait to try the higher power settings soon! The communication from TDI Tuning is excellent and they are more than happy to answer any question you have about the tuning box. I would recommend TDI Tuning to anyone wanting to see genuine results from their car. Thanks TDI Tuning!!

Just fitted my CRTD2 Twin Channel diesel tuning box to my Mk3 Octavia VRS and the results are already fantastic on the "Optimal" setting. I can't wait to try the higher power settings soon! The communication from TDI Tuning is excellent and they are more than happy to answer any question you have about the tuning box. I would recommend TDI Tuning to anyone wanting to see genuine results from their car. Thanks TDI Tuning!!

I've had a number of the tuning boxes and they ALWAYS deliver on both power and economy. Tdi also proved today that they're great when you encounter a problem. Thoroughly recommend.

Brilliant service from the start. The box works brilliant. Much better than the previous box which was from another well known firm. Beginning with a D and ending with a K. The power delivery is much more smoother. So I'm well pleased with it. And unlike the previous box I can transfer it to my next car as it's based on much newer tech compared to the other system. Many thanks again TDI Tuning. Job well done. Keep up the great work.

I fitted a twin channle box to my 2.5 hilux there is definitely less turbo lag much more responsive and defiantly more tourque when going up hills

Fitted tdi tuning box to my 2015 transit connect, instant difference to the power/torque the lag has gone just keeps pulling through the gears, much more smooth running, money well spent, customer service was second to none,

Fitted tdi tuning box to my 2015 transit connect, instant difference to the power/torque the lag has gone just keeps pulling through the gears, much more smooth running, money well spent, customer service was second to none,