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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

J.S.,Jeep Cherokee 3.0 V6

Although these are early days I have already been agreeably surprised by the significant improvement in fuel economy registered by the car's onboard computer. Although this was never really a priority in purchasing the device it is certainly a welcome bonus.

I am a very satisfied customer and glad to have been able to find a device which my insurance firm were able to readily accept without increasing my premium too ridiculously, a device which is British instead of German or American, and a device which seems to perform as claimed.

Haydn,VW Touareg 2.5

The tunit absolutley transforms the car. I was beginning to wish I had bought the 3 litre, but no need now. Brilliant service and product, I will spread the word. I think most people are sceptical of these things, but once tried you become an instant believer, and a very happy one at that. Regards