I bought these sensors to replace 4 tire pressure sensors on a 2008 Porsche 911 Carrara (997) and they worked as advertised. They are already set up and configured to work with the vehicle, all you have to do is install them at the tire shop and drive. A car that had a previous fault called TPS Learning will read the new sensors and after about 5-10 minutes the display will show tire pressure. No programming required.