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.

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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.

REVIEWS

Malcolm, BMW 3 Series 330d

My 330D BMW Touring was always good on performance but having seen an ad for Tunit specifically citing their unit’s increase in bhp and mpg improvement I spoke to Mark at Tunit who reassured me of the benefits from fitting his unit. It was expertly installed by UMS in Uckfield and the resulting difference in acceleration is simply breathtaking. I wasn’t expecting such an improvement from such a straightforward and affordable upgrade Recommended highly.

Bruce, Vauxhall/Opel Vectra 1.9 CDTi 150

I have recently fitted a tunit to my Vectra 1.9 CDTi 150bhp. I cannot believe the results, because not only has it improved performance more than I expected, but also, even with a heavy right foot, I can report an extra 6 mpg around town, increasing to 8-9 on a journey. Well worth the money.