from some searching only the older 80's saabs use t3's. the newer ones either use td04, t25 or gt17, there may be others. "GT17 is used on later Saabs equipped with Trionic 7 engine management"(9-3,9-5) the gt17 is similar to a t25.
the MHI TD04HL-15T-6 came on saab aero's. it would be easier if you had the numbers from the turbo. look here,
http://www.gikturbo.se/prislistor/lq-v.pdf under saab and match the nubers from your turbo and it will tell you the year of saab and what model it came off of. locally I've only found the t25's and gt17's in the junk yards around here. I'm guessing you probably have a t25.
B

 

Don't some Saabs have LPT's? Low Pressure Turbo's?
I know for sure some Volvo's have 'em...they suck *** and are really only on there to help move all that weight a little.

 

I’m not sure, but this turbo i have spools up pretty quick and pushes 6psi wish a slight gasket leak were the turbo and manifold connect, i would like to get a adapter plate made, but i don’t know what turbo this is. lol

 

With help, i found that it is a Garrett TB2569