sorry, didn't quite word that right, but the stock turbo will push that much with a turbo controller. Not saying the HG or the fuel cut won't kick in below that though
Basicly, turbo upgrade is only good in my opinion once you get your head gasket, fuel delivery, intake, and exhaust situation sorted, as the turbo isn't the weakest link. Once you get to the point where you need more than the stock turbo...go ahead and sink the money into an upgrade...