Hello, Visited a local tire shop to have a nail patched and the manager came up asking if I would like a set of Michelin PSS in 255/35/21 for $400. He said they had accidentally ordered it and it's the 2nd Tesla they have seen in their store so they want to get rid of them. The tires are $302 regular so it's a hell of a deal. I would like to pick them up to replace my tires that will need replacing in the next 6 months or so. Does anyone have insight if this would affect anything? I asked the local service center and they advised against it, but it honestly didn't sound like the person really knew. They didn't even know the factory specs of the 21in size. Any advice is greatly appreciated. Thank you!