I think that's one extreme example though. Curt Brown, 499whp on a VERY well setup car. I don't many people will get near that power... 400whp is quite a lot on that turbo. I don't think he was running anywhere near that much timing or boost either, I may be wrong though.People have dynoed 500whp on a 16g and making 10 sec passes. Just amazing.
edit - fail twice in this thread... i'm not sure on evo 8+ 16gs, but I'm talking evo3.