Theres been a few FRS/BRZs in my area that have tried to boost but its not holding up well. I think it would be a matter of time for this one to go especially with that much. But for this one they are fortunate to be a fab shop for turbos. So this is their protoype "car"
Still impressive feat at 520hp. I would like to know how many runs they did. They should take the block apart and inspect the internals for any extreme wear and tear. That would be a nice way to see how much boost the stock internals can handle.