the bearing in these units are pretty extreme, we compared them to the best available turbocharger units and the hypergear ones are in another league. i cannot divulge the origins of Toa's bearing but they are very under stressed in a turbocharger application... they are originally designed for military aerospace applications and run at around $200-400 per unit... and there are multiple units per Hypergear turbo.
im pretty sure tao was looking to find a suitable test car that sees plenty of circuit work to complete proof of concept.
Again i am not endorsed or ever received anything from hypergear, im just excited about his new developments and i still believe this is the most interesting turbocharger to ever grace my shop.