Depends if your car is 2wd or 4x4, also the offset of the wheels.
I run 8x17 RL7s on my saph and only the front archs are rolled. Thats with 215/40/17 on the front and 235/40/17 on the back. You will need to run the same size tyres if your car is 4x4.
Also i am fairly sure 45 profile tyres wont fit on the front unless you are running coilovers, this is because the tyre will hit the spring cups.