Questions about A4 1.8T turbo...

[OorQue@aol.com]

I have a few questions...

1) Exactly which model turbo is used?

2) Does it have an integral wastegate?

3) To make 180hp, how much additional boost does it need to generate?

4) What's the consensus as to its upper limit; i.e., how much power/boost can 
it generate before overspeeding?

5) What's the going rate for a used one with low mileage ... or more 
specifically, a *pair* of used ones?  ;^)

JG