Yeah that's an awesome price man! Good buy. I am unsure whether I'll go with the headers next as it would basically come down to how much it would cost to get them, but I would definitely recommend the stainless steel Xforce centre and Y-pipe assembly for the Outback. It's the same system I've got on my wagon and doesn't cost too much if you get it from Best Mufflers in Carlton.
Thanks man, good to know. I like a bit of noise that I get from my Ultrex, don't want drone when cruising though, so we'll see.
I want to check out the fitment of the STi mufflers, since they are for a wagon. I feel like the Ultrex ones on the outback are a little too short for the Outback's rear bumper, but Oh well, time will tell.