Great service, initially sent wrong paperwork but called on a Saturday and within 30 minutes had correct items sent to my phone, the after service from Jake in technical was world class, my stupidity many a plug fitted upside down was sorted and now works brilliantly, can feel the car is sharper and better off the line. Can't recommend highly enough. Great transaction from start to finish.

Completely transformed my car. The tuning box is good and you can feel the difference. Not much reviews on the pedal box on here so my advice is if you have a tuning box, make sure you couple it with the pedal box, you can thank me later.

I bought my BMW M51 powered Range Rover P38 knowing it wasn't the best towing vehicle for my 1.8 T caravan, after 1 weekend away, I decided I needed more power, did some research, you guys came out on top, bought the box, fit it myself (a bit fiddly but I blame BMW for that ! ) shortly after fitting the box, we did the NC500 (without the caravan), we have since had a weekend away with the caravan, I can't tell you what a difference it has made, I reckon the power has increased by at least 30 %. It put's a smile on my face every time I drive her. Thank you guys.

First of all, a big thank you to TDI Tuning for supplying my tuning box, very pleased with it's performance, yes it may be a little dearer than a remap but with a remap any car features you will lose as with the tuning box it works along side with the ECU so no car features are touched. My car is now very responsive and the fuel I get to the gallon is fantastic. VW Tiguan 2017

There is no doubt about the engine performance and economy improvement. I have a Ducato Roller Team 747 with 130HP and increased to 160HP. I installed the part myself but would suggest better pictures to show where the connections are otherwise a wonderful improvement and reasonably easy to install.

The guys were super helpful and made everything easy! The tuning box is exactly what they say, noticeable power increase and much more fuel economy!

initially sent me the wrong wiring diagram but very quickly rectified. Not a massive difference in tangible power/acceleration/economy from the product but it is a 7.5metre campervan with a starting point of a 135bhp engine so maybe my expectations were too high.

This is a great tuning kit - easy to fit and has made a big performance difference to my BMW 520D.

Price was right and the chips performed better than expected. A good value and installation was straightforward as described on the site. Would recommend their products to everyone.

BMW X3 2.0d xdrive Couldn't be more impressed. 10mins to fit. Makes the most of the engine and drive train. The increase in torque is superb. Will recommend TDI over a remapping any time to anyone.

Fantastic customer service, very helpful in ensuring the product was correct for my car. The item arrived quickly, was well packaged and very simple to fit. The power gains from this device are remarkable and I would not hesitate to recommend this product to anyone.

Edit Recently rang them with a query about the Bluetooth side of the tuning box and was properly and in effect told to f### off. Only ever rang them the once and a genuine query. So despite my comments below, customer service is shocking. If you buy a tuning box from them and it misbehaves, they've got your money and your stuffed After reading countless reviews of competitor boxes and remaps, my overwhelming decision was to buy into TDI Tuning for my 2016 BMW 335D. My decision was based on product reviews, reputation and removability enabling an intact vehicle warranty. I took delivery following a slick and speedy order process and was impressed with packaging and more importantly the build quality of the module and loom. It took 20 minutes to fit and the loom was perfectly cut to length to allow no excessive cables to hide. Following the recommended running in of 20 miles it was a 10 second switch to setting 7, or as I now call it.....lunatic mode. Let's be honest, nobody buys this for economy. That said, in setting 7, I am seeing an improvement of 8 miles to the gallon. Impressions are that both turbos spin up faster and earlier and despite the significant performance gain, the car is smoother to drive and changes gear less often. This TDI Tuning box is a no brainer, warranty proof solution to the risk of a remap and I'm going further on a tank full. Epic product......thanks