Hi Guys.
I have a contact that supplied me one. I am running a F30 320d.
I have not had it dynode but I can feel the extra pull. the consumption is 1l per 100 better, I am now getting 5L per 100 with standard driving.
You can adjust the unit yourself for more or less ooomph. I was told that when the engine light comes on turn it back one turn and that is the max or if the car feels sluggish turn it back one turn. I do suppose that to get the best out of the unit it should be dynode.
With it being plug and play the MP will stay in tact.