I thought maybe this was a superficial tear-down but nope, it's a whole heckin teardown and measurement of components and relubing and cleaning and etc.
They pulled some type of rotary pump thingy out of that monster that ran the entire length of the engine. I'd never seen anything like that and had to look it up. It's a supercharger; a glorified air compressor. That air pump uses more HP than your average supercar.
https://www.youtube.com/watch?v=I1RYmUxUqso
Also the end of this video gives an awesome perspective that really shows the insane speed of these cars.