i wouldn't recommend running oversized tires without tweaking your onboard cpu . you may not have any problems, but your tires are the most important thing for your car for safety.
fatter tires aren't great for the snow either anyway, you should get as thin as possible. iirc, your stock rims are 15x6.5, so you should easily be able to fit a 205 on there. my stockers are 17x7.5 and i was thinking about getting 205's even.