If it were me, I would NOT go to a place like Midas, who employs minimum wage guys with very little training on ANY braking system.
At least find a good independent who knows their way around a fine auto like the Porsche.
Look at it this way, even if the Midas guy simply torques the wheels wrong, you could end up with expensive issues.
Worst case, your car does not stop.
Good luck.
