If you have the OBD2 test, and not the dyno test, you will pass with a STG2 flash.
I passed a lot of Subarus with no cats. It's not my job to check for cats. I am required to check the gas cap and perform the OBD test. 1995 and prior, I am responsible to do a visual inspection and make sure all components APPEAR to be there, APPEAR to be hooked up correctly, and APPEAR to work. It is not my job to actually made sure they are not gutted cats, BBs in the EGR hose, etc etc etc.
It's mostly all in PA for emissions. They only do it for Federal Highway money.
- indytruckboy - PENDOT certified emissions inspector