BMW 550 Xdrive F10 with Dinan Stage 2

Preloaded 0-60 in BMW 2011 F10 550xi with Dinan Stage 2. Update in response to a comment: I no longer have this vehicle (2011 in Alpine White)--I sold it as a result of high mileage and a niggling concern (possibly just me) around ever-slowing shift-performance. That said, I bought straight back into a 1-year newer F10 xDrive 550 in Sophisto Grey--that decision probably says a lot about my love for the car in and of itself. I added Dinan Stage 2 to both (somewhat annoyingly, Dinan would do no