Utter junk that turbo mate.
It should go straight on as the SAABs us a small T3 as std - very similar to an Escort RST.
That turbo will prolly make boost around 3500rpm, but the quality of those chinese turbos is very poor. They are designed for Diesel engines and give a huge surge when they come on boost due to the trim of the blades.
A good balance of response and performance would prolly be a T3 from a 2WD Saffy Cos