Up to 34mm bars in the rear - got 'em in my ITB 924 now, custom-order hollow bars. Might be overkill, but I'm set if I ever hit the high banks of Daytona!

Correction on the PCA deal - they're going to be running 944-spec, which is different than 944Cup... it's basically an IT-level suspension, but stock motor and gutted a little more than allowed in IT, down to around 2550 weight IIRC.