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Superior Performance

The premium Advantage C-24 provides incredible torque just where you need it in any commercial condition. Fuel consumption has been shown to improve across commercial fleets in all sectors.

Adjustable Tuning

The Tunit Advantage C-24 premium model can be adjusted by a Tunit dealer precisely to maximise your economy and meet your type of work head on.

Go Eco

The C-24 is used predominantly for better economy. A bespoke tune provides exact adjustments for the best economy while delivering maximum performance.


Martin ,Seat Leon 2.0TDi FR 170BH

I just thought I would drop you a quick thank you message for the Tunit you supplied me recently. The power difference compared to standard is amazing on my car. The power delivery in 3rd and 4th gears is really good. I think I?ve shocked a couple of other drivers recently who were already driving quite powerful cars !!! I?ve set the Tunit on setting 9. I got 500 miles on my last tank of fuel and that was driving ?enthusiastically?  I was only getting about 400 miles to a tank previously. Kind regards and many thanks.

colin,Toyota Rav 4 2.0 D-4D

Have been running Rav on setting number 8 for a while and fuel consumption on average about 5% better than standard but because the engine responds better I do tend to drive quicker than I should so don't save as much as I probably could. Torque much better because I can drive in higher gears at lower speeds than standard set up. Tows 2008 Swift Challenger 480 really easily without too much gear changing. Have recently moved the control to number 9 and so far seems to have improved performance and torque even more. I was talking to fellow tower with standard Rav 2.0 D4D and he was saying he was disappointed that he had to keep changing gear when towing due to lack of torque. I did give him your phone number. Very pleased with the system in general. Easy to fit except for the silly place Toyota put the fuel rail connector plug.