Roadkill, i researched this a few months back. Nichols Machine and Welding in Phoenix area can supply GM sensors in the .625 valve stem diameter. About $48 per wheel. My TV is a 2020 GMC, and that year TV could not read pressures above 100 PSI without replacing a TPMS receiver (and flashing). I’ve heard but not verified the newer GMC’s will read something like 150 PSI now. I was going to be Appx $300-450 into just getting my 2020 TV to read above 100 PSI, so I went with TST system. I’m going to try and paste a link to Nichols, but if it doesn’t work just search for Nichols Machine & Welding.
https://nicholsmanufacturingandweldi...olsFocus=false