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MMM991
I ran MPSS on my GTS and Boxster S and love that tire. The tire is a little more flexible than the Sport Cup 2's and has a tendency to heat up and get greasy at the upper temperature levels around 200 deg. To keep the tire from getting too hot and over pressured I ran Nitrogen which made a big difference. The Sport Cup 2's need more camber. I am going to start at -2.5F 2.5 R and see how they do.
Ed