Just replaced mine at 23,000 with GY SC EMT's. The Firestone EMT's havnt been out long enough for anyone to say how they'll be after getting 10-15,000 miles on them. Only thing anyone can talk about with with any knowledge is price. Then everyone is having a hard time finding the FS's, their being told they're back ordered two months. I think sticking with OEM run-flats at this point in the game is the way to go for peace of mind.