Are the stock potenza's asymetrical? Meaning, do I need to cross them and rotate front to back, or just do a front-to-back move on each side? Also, is there a tool to unlock the wheel lock the seems to come one-a-piece on the stock wheels? Or does the lug-nut tool in the trunk enough?

thanks

Stock Potenza's are directional. Read the side wall arrows

If you have wheel lock, you know there's a key. Lose it and you're out of luck