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  • Standard Tunit

    Tunit Standard

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  • Tunit Advantage 3

    Tunit Advantage 3

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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.


Simon, Skoda Octavia 2.0 TDI CR

Great products and Rhys was very helpful with an problems that I experienced with my products fully recommend

Steve , Toyota RAV 4 2.2

Tunit changed over from my old car and re programmed for my Rav 4 2.2d. on short runs before the tunit was fitted I was getting 26.2mpg, now with the tunit it is between 29.2-33. On motorway runs this has shown a massive improvement from 41.3 to 50.02, very happy!!!