"Synergy 1 box - Mercedes CLK 220CDI sport"

I received my Synergy 1 box yesterday, fitted it today (10 minutes, if that, including siting, connection and cabling). Incredible difference, tried it on 5, cranked it up to 7 and it seriously is astonishing.

The 220 cdi engine is great and probably the best diesel engine I have experienced, add the Synergy box and it feels like it is now what it should have been, initial turbo lag is barely noticeable, power is smooth and linear to 110+.It has transformed a gorgeous, torque packed cruiser into something way more. Probably the best £90 I have spent in 10-15 years.

"Absolutely recommended"

Absolutely top rated. The Synergy literally transformed my 2.0di Freelander. Easy to install fantastic performance improvement.
Support is second to none: swift response and corrected an ordering error (on my part) free of charge.
100% recommended!!

"Very good contact and service"

Very good contact and service. perfect !

"Excellent company to deal with"

Excellent price of kit for the money, company was excellent and trustworthy.

"Excellent service when I called"

Excellent service when I called for advice and the product is awesome

"Excellent tuning box"

had box for rover 75. got new one for 2.2 xtrail good power and throttle response

"Great product and advice"

Great advice, fast delivery, easy to fit. Car transformed. What more could you ask for.

"Synergy 2 for 2.2d X-Type Jag"

I bought the Synergy 2 unit for my 2.2d X-Type Jag and found that it was very easy to install. Unfortunately I could not really detect any improvement in performance or more importantly MPG.
So I returned the unit and received a full refund. Since then I have had to have the EGR valve replaced on the Jag , so this may explain why the Synergy unit had little effect. So in summary if you fancy trying this device then even if your not convinced, rest assured you will get a full refund.

"AMAZING TRANSFORMATION."

3 years ago I had a “Synergy 2a” installed in my lovely Rover 75 CDTI.
It totally transformed the excellent BMW Diesel engine: increased torque, BHP & fuel consumption. I’ve just had fitted to our Fiat 3 litre Ducarto
Motorhome a “Synergy 3” & am expecting exactly the same brilliant transformation. We heartily recommend ‘Tuning Diesels’ products. PRB

"Freelander 2"

Freelander 2
This is the second box still having great results on my td5 110. Freelander 2 b0x is working great ,only just fitted it so early days . Great firm would recomend