Whoopsy:
The  991 GT3 or GT3 RS has always been delivered from the factory with either Michelin or Bridgestone and now Pirelli on the 992. It was random which tire you got. 

Don't think they supplied any cars with Bridgestones, but they did use Dunlops. My old 991 GT3RS came with Dunlop SportMaxx. 

 

Smiley Got it mixed up. Dunlops became Bridgestone in my mind Smiley