2017 Street Tire List
#16
If the 4S comes on your car from the factory it's legal for local and regional competition. The 4S is not legal at all for National competition whether it comes standard from Porsche or not.
This is kinda important because the 4S the replacement for the wildly popular Pilot Super Sport, so there's a good chance a lot of "casual" Porsche enthusiasts will have them on their cars soon, and Porsche very well may be installing them as OEM soon as well.
#17
Drifting
Minor clarification for others that may or may not apply:
If the 4S comes on your car from the factory it's legal for local and regional competition. The 4S is not legal at all for National competition whether it comes standard from Porsche or not.
This is kinda important because the 4S the replacement for the wildly popular Pilot Super Sport, so there's a good chance a lot of "casual" Porsche enthusiasts will have them on their cars soon, and Porsche very well may be installing them as OEM soon as well.
If the 4S comes on your car from the factory it's legal for local and regional competition. The 4S is not legal at all for National competition whether it comes standard from Porsche or not.
This is kinda important because the 4S the replacement for the wildly popular Pilot Super Sport, so there's a good chance a lot of "casual" Porsche enthusiasts will have them on their cars soon, and Porsche very well may be installing them as OEM soon as well.
I wrote a letter to SEB about it because it seems pretty asinine. They can fix this with a tech bulletin. Until then, best we can do is encourage more porsche people to buy a proper performance tire like RE-71R
#19
Drifting
Hopefully the issue will be resolved by either a rule change or more sizes released before any cars with OEM 4S hit the showrooms.
#20
Drifting
http://cdn.growassets.net/user_files...pdf?1490029181