There's a key to this. Tuning is, of course, a major part of making this power and -Dave keeping the car together. Be warned: Every single car out there cannot run this kind of boost on these octane levels. The parts combinations play a huge roll in the equation. The exhaust is a key element to being able to do this. A small-diameter exhaust or an exhaust full of reducers and resonators isn't going to cut it. The intercooler cannot be some cheap undersized unit. The turbocharger plays a large roll and he larger the turbine wheel/ turbine housing, the easier it is to tune the car at high boost and keep it detonation free. The camshaft grind also plays a large part in this. Basically, the air needs to get into the engine with as little restriction as possible. It needs to stay cool and then it needs to pass out of the engine with little or no backpressure.
It's nice to be at the cutting edge of tuning, and make large unexpected power after all the years we were stuck using stock ECUs and piggy-backs. Maybe pump gas actually is the race gas of the future?