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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 is easy to fit to any petrol vehicle by simply plugging in to the OBD port. The standard Optimum comes pre-set in one of three performance settings from Eco to Sport Plus.
By using Eco mode on your Tunit Optimum you can make drastic improvements to your fuel economy and save money by filling up less often.
Alan , Audi A4 2.0 TDI
This is my 3rd Tunit and I would not run a tdi without one. The current tunit has improved the torque tremendously making it far easier to drive due to less gear changes. The throttle response is instant without any turbo lag and I would recommend a Tunit to friends and family.
Robert , Rover 75 tourer CDTI
Power, torque and particularly engine smoothness improvements are all very impressive even after the 25 mile drive home from having it fitted.