Can you or anyone help me out in informing me about this tire? I just went through my 555r's and am looking for something with more life to them. I do not go to the track often to care about drag radials so I looked into the 555RII and want to know a little more about them. I have 555's up front and would like to match those as close as I can. My wheel set up is 18" 9/10's and I was running a 305/35/18 on an IRS rear. Can someone help by pointing me to a good radial and info on this Nitto and tire size options? Can I go bigger on the sidewall ect.? It does not have to be a Nitto tire but I need a radial of some type with good performance. The car in the sig is mine incase you were wondering what car it is for. Thanks guys.