Originally Posted by RPiM5
A tune with a BMW signature on it should be able to pass inspection when you plug your M5 into any dealership computer. Hmmm.....
I'm not sure about that, but maybe. That's what the vendor would like you to believe - but they don't explicitly state that you won't have problems with the dealer. They just say the tune is BMW Development software and has a BMW signature on it.
It does give me hope though that the real M Performance product will come at some point.