This was insanely interesting to watch. Thank you for recommending!

981 GT4. The O2 bung blew out of the cat while driving.

$12k out of pocket later, and I now have a new engine wiring harness, replaced intakes for those that melted, new fuel lines (that fortunately did not melt all the way through), a 2 foot section of the body wiring harness that had to be replaced, new control arm (gasket melted), and new cat.