I just replaced my PZeros with Toyo ZRated Tires.. same size. $200 a corner. Had them replaced at 31k miles.
The PZeros honestly lasted till about 29k miles, then road noise was similar to driving off road tires on asphalt. I also went through sudden jerks to the left and right when the tires would "react" to small dips in the road going at normal speeds. Glad I finally got them changed though, my car feels brand new with these new tires.