This is a PM I sent re turbo, it may help with others that are asking similar questions.
It is a turbo off a RB20 and as such is not a 1 or 2.
It has been hi-flowed, where the inside are machined out and made to flow much more air, also a bigger (steel not ceramic) turbine wheel than standard which can take much more boost than a ceramic wheeled turbo. The end result is a far bit bigger performance than either a 25 series 1 or 2. The other big advantage is that it is a bolt–on to existing R32 or R33. The cost of these turbos new are around $2000 exchange, or a Garrett equivalent with all the adaptors and lines and it will be $2600 or a HKS or Trust will set you back about $3500
If it was rebuilt it would be around $1400
It would be good on yours, heaps more power but more laggy.
Hope this helps