Yea I dont know what he was thinking with the first pax, the tire limit is going to help the most hopefully I can save enough for 18x11s and 315s and ditch these 265s.
Porsche doesn't have a legal ST class do they?
There are a few older Porsches classed, but no water cooled (yet). The STU rules were modified this year to include mid-engine and rear-engine and we're expecting to see at least 986 classed in STU; how much else is speculation right now. It will probably be fairly conservative this year, with performance impacting what cars get classed in STU next year.
2015 STU tire allowances are pretty restrictive for mid & rear-engine, though. My opinion is that with the heavy RWD moving to STP, this year is a great opportunity to drastically increase the tire allowances across all of STU to let people run the tires they actually WANT to instead of artificially narrow tires. I think the best way to fix this is to change the wording from absolute tire width to average width. That you could run 255 square on a Boxster, or you could run OEM sizes of 235 front 265 rear on a 987 Cayman, etc.