"Excellent service as usual"

Excellent service as usual. Have had my tuning box reprogrammed/ recabled twice now from an xtrail to a berlingo to a caddy and has given expected gains every time. First bought a (Ronbox) years ago for a rover 75. Unreal difference to the car. Hope to be a customer for many years to come

"One of the best and most versatile add ons EVER.!"

One of the best and most versatile add ons for the Range Rover P38 with the BMW engine. Its transformed my RR from a docile slug to a vehicle that is much more responsive, a pleasure now to drive. Fuel economy in mine increased by almost 30%, top speed by an extra 17 mph and hill climbing is no longer a chore. I strongly recommend the RonBox as a definite must have without a doubt.!!!

"Amazing product"

Amazing product, easily fitted and great value for money.
If you have a 300tdi you need one of these.

"Synergy1 fitted to merc sprinter motorhome"

Fitted a synergy 1 tuning box to my Mercedes sprinter motorhome, been for its first run out today and wow very very impressive. Even the sprint shift gearbox changes smoother and quicker with much less throttle, turbo kicking in now about 1800rpm rather than the 3000rpm that it was doing. Fantastic product and communication, and next day delivery was an added bonus. Thanks Ron and well done on a terrific product.

"Great product, very kind contact."

Dear Ron,
thank you very much for your great product. Digibooster works very well and I thank you again for your service.

"great bit of kit"

great bit of kit

"Green Range Rover got even greener"

I was only getting 24mpg with my P38 2.5 DHSE but now using the factory settings l can achieve 32+mpg

"The rover CDTI wasn't that bad but…"

The rover CDTI wasn't that bad but being a bit long in the tooth it was starting to feel a bit tired.
Just had a new Bosch MFF fitted so it didn't need one, I put in the Ronbox on Saturday morning and went for a try out drive. Super... only on 3 so far but feels like a new car again, not only really nippy but much smoother from low down.
Love it.

Thanks Ron.

"Fantastic product & service"

Fantastic product & service, communication was great!!

"Great seller"

Great seller. Very helpful with quick replies. I purchased a Synergy 1 box and it made a huge different in torque.