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Superior Performance

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.

Adjustable Tuning

The Tunit II is adjustable on installation. If the vehicle has a change of use then further adjustments can be made.

Go Eco

The Tunit has provided economy for many years on an array of applications and has been used extensively on Military vehicles.


Daniel,Honda Civic

Noticeable difference, long term will definitely be worth the money

Dave ,BMW Alpina D3

After Installation the D3 vastly improved in performance reving like a petrol engine and the extra torque made it pull much harder through the gears.Also it improved the mpg by 4 which is outstanding.Highly reccomended Thanks Dave