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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.
David ,Landrover Range Rover 3.6 V8
Noticeable increase in power and torque. Extra acceleration. Took mine to 110mph in what seemed like no time at all.
Graham ,Audi Q7 3.0 TDI V6
The Tunit fitted and working well. Additional power great but now getting 33 mpg versus the 25 mpg that I was getting. I originally left the setting at the default 5 and was getting about 29mpg, I thought by moving to 7, I would have increased power but reduced mpg, however the opposite has happened. I fitted the unit myself in the end, it was very simple to do.