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,

Great staff and really helpful. Having the stage 2 box fitted to my VW Crafter sports van has made such a difference... With it set in the middle mpg has risen to 34... And the power uplift makes easy driving.... Many thanks...

Fitted my CRTD2 box today and WOW! I have a 2013 ix35 with 134bhp & 320nm and this device has transformed the car, I can fully believe the claimed increases. Fitting was a doddle, actually took me longer to cable tie everything tidily than it did to plug it all in. My main reason for fitting was for the gains while towing a caravan which I will be later in the week so I'm looking forward to seeing how it performs then. If you're thinking of buying one do it now and spend longer enjoying the results! Thanks TDI Tuning.

I only ever buy the tuning boxes from this company, and recommend them to anyone. They defo work! The customer service is excellent and ive had their boxes on a few cars over the years and i get sick of people who dont have one telling me they dont work! Thats untill they have a drive of my car! Then they buy one! Ha

I only ever buy the tuning boxes from this company, and recommend them to anyone. They defo work! The customer service is excellent and ive had their boxes on a few cars over the years and i get sick of people who dont have one telling me they dont work! Thats untill they have a drive of my car! Then they buy one! Ha