Yes it is high flowed. I'm very surprised he didn't try more boost. I'll have a look at the maps in the ECU to make sure there are no dumb settings at the higher boost levels and I'll dial up the boost controller a bit.
I have run e85 before on a 2L with the same turbo and ran 24psi and got 244kW. I won't be able to run that much boost with this engine because it flows a lot better so I may crank it up to 18-19psi and see how it goes. I have an electronic dash so I can see the intake temperature while I'm driving.
The turbo is either maxxed out or very close to it so I'd be surprised if I can get much more out of it.