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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

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

Martin,Seat Leon 1.6

Lovely pictures, anyone who wants mpg, torque and quality for money should choose Tunit!!!, been a customer for 4+ years, quality, service and a product that won't let you down, pays for itself in 12 months on a basis of 15 - 20 K per year. Thanks to the staff at Tunit.