Someone else most likely knows more details, but I had my 9000 Aero serviced at Saab City in the 1990,s and there usually was an uprated 9000Aero around for sale or being serviced. I never paid much attention, but Saab City did several T cars, and the top one (T18?) had AP racing brakes, lsd, v loud s/s exhaust and engine boosted to 320 or 340hp. Had some rough edges but very fast on the highway.
I assume this is Rowans car at South East Saab. I borrowed it a few years ago when he did some work on my car before setting up SES and it was incredible compared to my LPT. I'm glad hes got the rebuilt turbo back on as mines due for a service soon!