Good luck trying to flash with ANYTHING other than the tactrix cable. It might work for datalogging with Tari, but that's it.
Get at least a Dual-K (i think that's what its called) Vag-Com it's the fastest non-tactrix and is around 25-30 last i checked. you'll actually be able to pull roms off of cars with one of these, but not flash. it's the closest thing to a tactrix cable without actually buying one.
I'm not sure really, it might it might not, maybe you can pm the seller and ask, but it's really similar to the one I used to have, I'm not sure the how much the pin outs matter if it obd2, but it may be different somehow.
You NEED a Subaru-specific cable for this. Just obdII won't be enough since Subaru also uses SSM for datalogging.