Good product Easy to fit and works as described. Thank You.

This is my second purchase and it works well for a great price. Good products and fast delivery.

I purchased a Synergy 3 box and realised insurance wouldn't cover me for it. Tuning Diesels refunded me immediately after I contacted them. Very good customer service. Wish I could say the same for my insurance company.

Good service and everything explained personally , good delivery , and one great difference to the car. Synergy 2a. And digibooster many thanks Ron

Excellent customer service,contacted Ron several times and had swift reply’s back with very helpful info plus extra info regarding my item,purchased my item which came very quickly in the post and the transformation it made to my Freelander td4 is amazing,drives now how I think it should drive and got the added bonus of the in car dash switch which is ideal,A1 thank you very much

Great service and fast delivery. Would recommend to anyone

Excellent company with great products.

Made a huge difference to the performance of my aging Land Rover Freelander TD4 with over 130K miles on the clock. Even better after I cleaned the inlet manifold and serviced the 4 fuel injectors. Worth every penny. Easy to install. Hardest part was finding a hole to put the cable through whilst fitting the cabin switch. Currently using setting 6. All good so far.

I'm a returning customer. Great product and service.

I bought the tuning box 3.instald it on my sorento and the settings are very good.i have only tried it up to setting 4 so for.but the results are good.i will try other settings at a later date.i would recomend this company.

Old MAF was causing overfuelling and smoke in my ZT-T. The Pierburg MAF and synergy box has breathed new life into the my MG! I was thinking of selling it, but I might just wait another year or two now. Performance is tangibly improved, pick-up is better, mid range acceleration is way better than before, even when car was 20k younger! Haven't done the numbers on fuel savings (or othewise) yet, but the old MAF was clearly making the car inefficient, so I know it's going to be better. Even if it's only a small improvement, it's worth every penny for the extra OOMPH. Spoil yourself, buy a Synergy 2a today.

Alles super gelaufen!!! Top Ware!!! Schneller Versand!!! Jederzeit gerne wieder!!!

2nd one i bought good value for money works well on landrover would recomend

Fantastic . I have a freelander 04 td4. And the box and switch are a brilliant addition. Easy to fit . Step by step instructions. I find the dashboard switch to be a must addition. I also tow a caravan and find that using the switch on long hills a must . So easy to over take . If you are thinking of buying one , stop thinking and save money now by getting this .

Great service - box arrived the next day and its made my Freelander Td4 a pleasure to drive

Great quality product, easy to fit with no issues. The mg ztt cdti is now a different car supplying a superb amount of power throughout the power range, fuel consumption has remained the same as well.Worth every penny. I would strongly recommend this chip having done homework on various other ones available.Better to pay more and get it right first time than buying a cheap chip and giving yourself problems

Brilliant to deal with! The new maf sensor made one hell of a difference thank you.

Amazing from start to finish. Ron, the contact there (who may also be the owner) was brilliant, gave great advice and options, really knows his stuff. Delivery was great. The product is fantastic too, does exactly what it promises I got the synergy 3 instead of opting for a remap. And I am not disappointed at all. I've also got a dash switch so I can toggle between 2 modes, an eco focused one.... and an all out clutch slipping one.... actually I'm not using that one atm.... until the clutch is upgraded. In summary whilst I think "Ron" would benefit from allowing someone to RE-vamp his website, the product is top notch and you won't be disappointed.

Brilliant product, brilliant service!

been using 'tuning-diesels' products since 2012 customised synergy 2a with pierburg maf dgb1 turbo controller .. on a m47r motor great service from TD's .. excellent performing products ~~~~~~~~~~~~~~~~~~~~~~~