After advice from a few on here, ive gone for 225/55/R16 over the standard 215/60/R16, got two Near new Yokohama DNA dB decibel tyres for $140, which i was happy with as they retail for about $260 each new over here. ALOT better than the two mismatch ones i had on the front, and they really are a quiet tyre, road noise was quite bad on my previous ones. they are directional as well, and handling and grip is hugely improved. In short i recommend the size change if you are running standard rims.