William.Geiss@yahoo.com
I have the Michelin pilot 4S on my 2019 Mustang Bullit and have had multiple issues with the tire separating issues , poor wear (down to 3/16 of in left, cracking on side walls with only 27000 miles on them. These tires used to be great on other vehicles i owned, but the quality has gone down hill.
They all will have to be replaced for safety issues. 000 miles and I don't drive the car hard or in races.