Too much rear tire??

Jonny

Hey guys, before I start, I just want to say that I know how to use the search button and that my flame suit is on

My question is a 295 Michelin Pilot Sport enough for the rears? The question I ask is because I am in the market for new wheels and tire but I am not sure on what size width to get for the rear. Right now I am on worn stock potenza's and I always lose traction after 5k. So that naturally brought me to the conclusion that I need wider stickier rear tires. I am debating wether I should get a 295, 305 or 325 Michelin Pilot Super Sport in the rear. I know that they are a very sticky tire, but is running a 325 Super Sport in the back is overkill? I know if I go too wide in the rear it would slow me down because they will have too much grip. My goal is too improve rear grip enough to keep the car balanced.So is a 295 SS enough for me? I am planning on running auto-x maybe 4 times next year but a majority of my driving is street driving.