Black Friday

Showing 1–9 of 10 results

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.


Keith , Vauxhall/Opel Meriva 1.7CDTi

The Meriva is running very sweetly,i'm amazed at the torque this engine has now tuned!!,4 persons+ luggage 5th gear,1,000 rpm 30 mph,take up speed,causing a few BMW Mercs, and the like some surprise. Looking forward to w/end Meals on Wheels. Regards. KG

Andrew , Landrover 2.7 TDV6 Range Rover

Hi Reuben, Just a short note to say a big thank you for fitting my Tunit unit yesterday, i haven't driven the car since collecting it from your centre, but it felt more alert and responsive during the brief drive home.