I bought a set of 19" wheels with snow tires last winter while still shopping for a Tesla, and ended up getting a 2015 (whereas I had been expecting to get a 2013 or early 2014). So I had to put gen 2 TPMS in the wheels, and have the gen 1 ones for sale now. My understanding is that the person I got the wheels/tires from had bought the wheels from Tesla about a year before he sold them to me.
$90 shipped.
$90 shipped.