The Petrol Package provides the best in performance, savings and aftercare. Optimise your petrol engine with outstanding torque and BHP. Average fuel savings of 9%. Maximum control.

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Superior Performance

The Petrol Package provides the best in performance, savings and aftercare. Optimise your petrol engine with outstanding torque and BHP. Average fuel savings of 9%. Maximum control.

Adjustable Tuning

The Petrol Package allows adjustment through the Optimum Plus Phone App which actually increases or decreases BHP and torque. The dash control part of the kit controls the delivery of that performanc

Go Eco

Every driver and every car is different. Although already pre-programmed and pre-set for your car, easy to use controls allow performance to be tailored to suit your driving style.

REVIEWS

Andy,Jeep Grand Cherokee 2.8 C

Tunit arrived in good time and was very easy to fit, the small picture helped a treat! On the first outing, with the dial still set at 5, the Jeeps MPG reading steadily rose and kept rising for about 150 miles or so giving me about 5 miles per gallon extra. With the dial set on at a lower number, would the fuel consumption increase further? The 0-60 time is not of huge importance to me as the jeep is fairly quick for its size anyway! Regards and thanks for your help again

Lee,Citroën C5 2.0 HDi

Hi Daniel, since the fitment of the Tunit V-CR unit to my new Citroen C5 I have noticed a marked increase in fuel economy, performance and refinement. At a steady motorway cruise the average consumption has improved from 40mpg to in excess of 50mpg. Performance has also increased and the added midrange torque makes overtaking swifter and safer. I am delighted with the result, especially as I fitted the Tunnit to enhance performance rather than economy. The added benefit of being able to transfer the tunit to another vehicle in the future is the icing on the cake.