No...stock sizes 215/40 and 245/35. I had heard about the ability to go wider but I am glad I did not. Here's why: the PSS A/3's are actually slightly wider than the OEM Bridgestone Run flats. With my 'Stones I ran a set of VAC spacers, and I had the tire dealer re-install them with the PSS A/3's. I had to go back and have the spacers removed. As I pulled in my driveway the wheel deflection caused my rear tires to rub. I also noticed that symptom again on the way back to the dealer, as I crossed a wavy intersection.
I have no desire to roll my fenders, and I would advise anyone interested in running the PSS A/3's to stick to the OEM staggered spec.
As for performance, I live in the northeast where the weather has been cold and wet. I use my SUV in the snow but these PSS A/3's are AMAZING in the cold and wet.
