The backpressure will actually result in less torque, but more HP. I've also heard in the Jeep world, not sure if it applies in the SAAB world, too, that removing the cat can cause premature valve seat and valve seal wear. Like I said, it applies to Jeep 2.5 and 4.0L engines, but not sure about the SAAB 2.3L. I agree, just go with a highflow unit, if you really want to get more flow. If you were doing just 'cause its a cheap mod, don't bother.
\'79 900T 5 dr under construction
\'95 Jeep Wrangler DD and weekend warrior