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Performance is our passion and we work to get more out of your engine. Optimise your petrol engine today for more power, torque and fuel economy.
The Tunit Optimum Plus is easy to fit to any petrol vehicle by simply plugging in to the OBD port. The Optimum Plus uniquely can be adjusted from your phone Eco to Sport Plus.
Easily switch between Eco, Sport and Sport Plus from your phone. The Optimum Plus provides a unique ability to fine tune to your needs.
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.
Paul, Fiat Abarth 500 1.4 T-Jet
I have a Tunit device on my diesel motorhome and my small fiat Abarth car. Both of which perform faultlessly, and improve driveability and economy.