Depending on your rim widths, 255/30/20 and 285/30/20 are also very, very close to the stock front and rear tire diameters and may be a better choice. I use that size on my 20x9 and 20x10.5 rims.

 

correct this is the right size

some of us choose to go w/ a 245/35/20 up front cause the 30 series provides a very rough ride

i recently changed mine from 30 to 35 and it was a huge diff in the way the car felt

my speedometer might be slightly off but at least is a better ride