I talk to my BMW mechanic today who also happens to build bmw for tracking and himself has track cars told me the power gains mission performance giving out are in the safe levels for the transmission and turbo (there is still risk involved and not every car the same and you gonna ruin it if you drive like a manic 24/7 or tracking). Nevertheless, this indeed put a smile on my face
. I just bought me an exhaust for my car but I'll be jumping on this power train as soon as funds become available for me to spend which should be in couple of months! Can't wait.