You nailed it with the PSS. I can light them up in a third gear roll at like 5500rpmI had the rs-rr's and they were fantastic on the street for the first 4000 miles. Would hook 2nd gear roll. HP not known but trapped 126. They developed a terrible vibration which I thought was front tires, guibo, you name it. No idea why they were so bad, but they turned pretty much overnight. Hopefully just a fluke, but I replaced them with Michelin pilot super sports. Terrible tire that spins like crazy on even a 3rd gear roll. I really want to get some 17s for the rear but they're are very few 17 inch options for a wide tire.
They are total garbage how that tire theft the factory with a stamp of approval is beyond me they are terrible