Searching threads can be tedious. Prob my skills. Anyway. My car came with 20" wheels, center locks. Can I run 19" wheels and tires? Esp for HPDE? I do not have PCCB. but do have 6 piston front calipers. Thanks. Hope I didn't open old wounds.... Never mind, don't think I will find 19" wide enough.

 

I would assume you could have someone like Lightspeed make wheels for CL's. I am honestly not sure if there are any off the shelf options. As long as you do not have real axle steering, you have clearance to run 19's and I think there has been a case where someone on RL got custom 19's with RAS (you need to research that bit). I have a base 991.2 but have 350mm rotors on and there is a ton of room left, so rotor size is not a factor for you.

 

Some 19’s will fit. A lot of 991 GT3 guys run 19” BBS Motorsport wheels or Forgeline wheels for the track.