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I received my unit back on the 18th and refitted it over the weekend - what a difference. My Skoda is a different car! All “hollow diesel knock” has now disappeared and the engine performs with increased smoothness (pulling smoothly from 30 mph - 1100/1200 rpm in 4th gear!) and noticeably more pulling power through the gears. With the engine electronics now "put back to spec.” by VW after their emissions scandal and the Tunit unit working correctly, I am impressed. Thanks for your help and looking forward to greater enjoyment from my Skoda.
Trevor ,Toyota Previa
The Tunit was fitted to my Toyota Previa. This transformed my Previa (114 bhp) from a `Gutless Wonder` to a car able to keep up with the likes of Galaxy and Espace and leave them behind on hills. At the same time my fuel consumption went from 36/37 to a fantastic 44/46 m.p.g without me even trying to achieve an improvement. I was more than satisfied.