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The Tunit II focuses on reducing the lag seen on older diesel engines. Mid-range improved torque makes driving much more of a pleasure bringing benefits in economy also.
The Tunit II is adjustable on installation. If the vehicle has a change of use then further adjustments can be made.
The Tunit has provided economy for many years on an array of applications and has been used extensively on Military vehicles.
Graham, Audi Q7
Had device retuned to fit my Q7, from Mercedes Sprinter. Found Tunit made throttle control smoother and better performance overall. MPG still needs working out, as I haven’t been on a long run.
Richard, Nissan Navara 2.5 dCI D40
Just to say thanks, fitted my chip last week to my Navara D40 and after trying others I am well impressed. Got it set on number 7 running fine so far, small hiccup when set on number 8 but torque is amazing. Will have to see how good fuel econ is when I start driving sensible again but I can't hep putting my foot down at the mo.