I bought four tires from Firestone and put new TPM sensors in and when I went to pick up the car all four tires were flat because of the new TPM sensors and the guy worked on the car for about another hour to get it done trying to get them The new TPMS sensors stop leaking, finally he said it's ok, they put a new set of gaskets in, now two days later one of them is leaking again. Please stay away as it will cost you more in the long run. Good price but terrible product