There is a crazy high pitched win in the video. I dont hear a waste gate blow off at any point so i would imagine it must be the bearing failing from when he started on the dyno.
I dont care what kind of car it is, that would suck if it was yours!
I had an exhaust shop drive my rod off one of the drive on lifts.
Lift was at ground level and literally no damage was done... save both my and the shop owners soiled shorts
Apparently he wasn't ready for the torque, despite multiple warnings.