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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.
I've tried a few other types (cheaper and more expensive ones) and this is by far the best. I noticed power gain straight away and have already seen 8mpg improvement on the few short trips I've done. It's easy to adjust to try the different settings and find the one that suits you best which gives you more power to accelerate up to motorway speed quickly and then cruise along using less fuel whilst also allowing safer, much quicker, easier overtakes on country roads too Thank you again for the Advatage 2b
Bruce,Vauxhall/Opel Vectra 1.9 CDTi 150
I have recently fitted a tunit to my Vectra 1.9 CDTi 150bhp. I cannot believe the results, because not only has it improved performance more than I expected, but also, even with a heavy right foot, I can report an extra 6 mpg around town, increasing to 8-9 on a journey. Well worth the money.