Yeah, that's me, I didn't work on them though. Just designed the fuel and other components for them.

As to the point of this thread: I would never 'paint' the inside of a turbo but there are many ceramic coatings that will stand up to the extreme temps and abuse. The one that is going to be the cheapest and most available to the avg consumer is Cerakote which I have used on personal things in the past and is a really good consumer grade coating. That being said, coating the inside with anything other than a light skim coat of a high-temp anti seize lube is a waste of time and money and I wouldn't do it.