Fascinating and historic stuff, but if it was working so well, why are you removing it?
to be honest I was more after economy, and a couple of months back when I suspected the car isn't fitted with the brabus d6, (due to not being able to see it ofc, or any connections under the engine cover) I managed to get a good deal on a chip express tuning box, which is adjustable, and claims around the same power, as well as economy on top...
so I thought I might sell the brabus tuning box, perhaps on the forum? if it's of any interest to anyone... the car is indeed pretty quick, I haven't exactly timed it, but having watched youtube videos, and knowing friends who own the same car, those seem pretty sluggish compare to mine...
if I end up using the chip express tuning box, I may end up selling the brabus d6 (ii) to anyone who may be interested, it's surely a rare beast...