Not sure what happened really
I've got a few theories, just gonna put it down to poor maintenance, little tweaks and the turbo being 80k old.
Think the bearing dropped, the exhaust wheel hit the housing and sheard off
Got it back the last 2miles off boost with oil going in the exhaust.
I've managed to the old turbo, exhaust and intercooler off. Im cleaning/inspecting everything atm in the kitchen. The gf loves it, lol.