You shouldn't need bigger injectors with Stand Alone Management.
What type of injectors are the Saab 9000 type?
If they are the old pintle type - like the old cossie ones...don't bother.
You can do better fitting modern injectors.
Old technology can give poor atomisation at idle, and poor emissions on large injectors...going to modern disc type will give better combustion, lower emissions and if you use 1.8T EV6 types, cheap at breakers.
A set of 150 1.8T will give enough flow for 200+ BHP...180 ones around 240 BHP and 210/225 around 280 BHP, all @ 3 bar FP.
Personally, I'd look for a set of recent 150 1.8T injectors - they are also high impedance and so perfectly suited to the Emerald ECU!
You should be able to source 150 1.8T injectors easily...as people fit 180/210/225 when they fit a K04 turbo...so there should be a good supply about.