Decent handling susp setup?

Cool, im a big fan of cooper tires, ill ditch the bf goodrichs and get myself a set of cooper ultra tourings. How does a set of 255/60r15s on the back on 15x8s sound?

Can you get them in a 255? I have 225 60 15's all around.

http://www.motortrend.ca/en/enthusiast/feature/consumer/1407-cooper-tire-cs5-tire-review/