Everyone, keep in mind not all tires rated as the same width are the same actual width. I changed from the factory 245mm RE050 RFT to 265mm StarSpecs and they are easily 30mm or more wider.
Nevertheless, even a wide 255mm should be ok on a factory offset wheel. It might be pushing it with some aftermarket wheels with less positive offset. Factory is something like +58 I think, and the best fit wheels are running +58 to +62.