Hi guys, I’m just about to make my vehicle with the help of “negative tuning” TÜV-ready. I threw out the Greddy Blow Of valve and again installed the serial rewind valve. Besides, I also renewed the hose from N75 to the Wastegate. It looked cracked in some places. After a few kilometers of driving I had to find out that the charging pressure control generates something like an overboost. In conjunction with the currently dropped below the freezing point again. Temperatures are now going off like hell (compared to a normal 180) and, according to the LDA, it pushes up to 1.1 bar during the spontaneous full throttle, but only for a very short time as a peak value, in order to then fall to the usual values. Analogous to the rash of the display, you will also notice at first a rough torque in the back, which then, if you stay on the gas for longer, normalizes again. Incidentally, the GZ has remained in it, but will also fly until the TÜV. To make a rhyme about where the overboost came from? Didn’t that happen before the Greddy installation, only now, after the removal.