Tunit Advantage 3


• Increased BHP
• Increased Torque
• Fuel Savings on average of 12%
• Adjustable between 0 and 9
• Able to be dealer bespoke tuned
• Easy to install
• 2 Year Engine Warranty
• 5 Year Product Warranty
• Life time Part Exchange or reprogram for your next vehicle.


Item Description:

The Tunit Advantage 3 produces superior performance and can be optimised for economy. Introduced for all late model diesel engines it has superior performance and features.
Installed through original plugs by you self or through one of our worldwide dealers. Bespoke fine tuning can be carried out on installation or at a later date. Extensive aftersales service on warranties and upgrading. The Advantage 3 is the premium product for Diesel car and 4×4.

Superior Performance

The premium Advantage 3 provides the best in performance, savings and aftercare for your engine. Optimise your diesel engine with outstanding torque and BHP. Average fuel savings of 12%

Adjustable Tuning

The Tunit Advantage 3 premium model provides easy adjustment 0-9 via an external dial or bespoke fine tune through our national dealer network for maximum results.

Go Eco

Every driver and every car is different. Choose a setting 0-9 from the Advantage 3 external dial. Move higher or lower to improve economy.


Ray ,Nissan Navara 2.5 dCi 171BH

Jeremy Davies of Bernard Davies Commercials was very efficient at fitting the Tunit. I have just returned from a trip of around 800 miles. I have only checked the fuel consumption by means of the vehicle computer- not brimming the tank. This, however, shows an improvement in fuel consumption of marginally over 9%. The power/torque improvement is somewhat more difficult to quantify but on the only occasion I really booted it to try it out (not towing) it really seemed to be an improvement. When towing the torque is more obvious low down in the rev range. On main roads I seem to use around 1500-2250 revs an aweful lot. It is surprising how well I can hold top with no loss of roadspeed (measured by my Tomtom) on uphill inclines compared to previously. Also I can get into top gear much easier than previously and acceleration seems much improved. I hope this feedback is useful to you. Thanks again to you and Jeremy

Bruce,Vauxhall/Opel Meriva 1.3 CDTi

Hi Jerome, I purchased a V-CR unit for my Opel Meriva 1.3CDTI direct from you in early April, I have now had the chance to run it for a month and over 1000 miles. In a word "Superb". The little JTD engine has always been flexible and willing but a little down on power, especially on hills. This has now all changed, there is a lot more power at lower revs, the acceleration is better and it's quieter. I have not had a chance to accurately check the consumption but it looks as though I am using less diesel than before.

So a very happy customer.

Kind Regards