I would suggest depending on what tire you are going with for example the NT555 Street tires, if it was me I would run on your car 275/40/17 for the front and either 285/40/17 for the rear which will give you a little bit of roll over or beefy look. Your second choice in size for the rear would be the 315/35/17 but they would roll over pretty good and you probably would not gain much over the 285 VS 315 when it comes to traction and handling. IF you go with another tire brand then the actual size may vary but otherwise pretty close all around. IMO thats what I would suggest.