Tunit Advantage 3


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.

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SKU: ec6b73bab27a-1 Category:


• 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.

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.


Ian,Skoda Octavia 2.0 TDI

Hi, Congratulations and well done for the help you have given our troops in the battlefield. I am sure the whole country would echo our thanks if they were aware of how Tunit have been able to resolve the problems they had been experiencing.

My son has proved over and over just how good Tunit is at boosting performance in his fast response Skoda Octavia and it is just possible that by cutting his running time to serious incidents Tunit may have indirectly contributed to saving lives. At the very least this has helped the victims get the earliest possible attention from a highly trained doctor and this alone must have been of great relief and comfort not only to the victims but to all those involved on scene.

He also has the added bonus of economy and reduced emissions so it is a total Win! Win! Situation to use Tunit.

I am so pleased that I recommended Tunit to him.


Ian,Nissan Micra SR 1.5i

I’ve had 5 Tunit devices over the years . 4 were in new Nissans with the Renault 1.5 diesel, and as they were hard wired sold them on fitted. This Optimum Plus ,which I’ve only ever used for five years in a petrol Nissan Micra C+C 1.6 Essenza ( one of the first made in 2005), again, has amazing results. The car consistently does 45mpg , is incredibly flexible (in 5th at 30 mph on the flat on a trailing throttle )..in Sport Plus. Using a maximum of 6,000 rpm when fancied, for a car probably only worth £2k , it seems quite sharp! A bit of a Wolf in Sheep’s clothing. I only use Shell V Power and scrupulously keep on top of the servicing, even though it only does 3,000 odd miles a year. Once again, thank you for your kind assistance.