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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. Transfer free to any nu
Easily switch between Eco, Sport and Sport Plus from your phone. The Optimum Plus provides a unique ability to fine tune to your needs.
Sixto ,BMW X5 3.0d
Great product. Easy to install. Works very well. Frees factory-limited engine.
Denis ,Skoda Superb
I have had my unit installed for some months, at first I had problems with fuel consumption! higher than without the unit on. I phoned your experts and was advised to take the unit from a setting of 3 to max(9). I was also told that your operative believed that torque was the secret for performance and lower fuel consumption. I can now after extensive use of my car towing (a 24foot van) tell you he was spot on! I use the torque where it applies to my outfit, I can tow comfortably at 53mph at 1600rpm, the available torque allows for a down change if needed for hill climbing, fuel consumption 33-36 mpg over the whole journey. Be fair! at 1600rpm the engine is just ticking over. Now I can also tow the same van at 70mph, now I am using the extra power supplied by the unit, don't look for fuel savings here as I will return 25-27mpg. A word to the wise don't expect to see any use from your unit if you use Supermaket fuel, its crap, some time ago I stopped using Tesco and like fuels, and I now have a different performing car. Sorry to go on, but thought you would like to know. Regards Denis Hall.