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 pad controls the delivery of that performance.

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

Anthony ,Mercedes ML 270 CDI

I have always had performance upgrade on all my cars history butthe Mercedes Diesel was my first. Having visited the motorshow and did some research tunit offered value for money and true figures to what is claimed. There was a huge difference when I fitted the Tunit kit that the egineer who installed it was very impressed. Here is an expample We drove on a stretch of road standard form and we hit 74mph at a marked point.After installing Tunit the same point we hit 89mph as the tourqe band was huge. Im pleased and well happy still reliable and savings on fuel agerage mpg gone up by 5-8mpg more.A good and worthwhile investment....

Daniel,MG ZR 2.0 iDT

I have had the wiring looked at and tested and then repositioned and all is now working. Im very grateful to you for your help and advice along the way when Ive needed it. There is now a noticeable improvement especially mid range in both second and third gears. The bottom end is still sluggish and this has now been checked and analysed as a flat spot on the air flow sensor which needs replacing. Im very happy with the improvements the Tunit has made.