Not to hijack but you really should do your research. You understand with an 06 you'll 100% need a boost gauge to look out for boost creep if you get a turbo back exhuast(without at least the bigger downpipe you won't get any power boost). Axle back will give you sound. You'll also need a tune(only cobb AP access port can tune 06's right now-that's another $650) or else your car will run like crap and throw out check engine light warnings after a while. Subarus aren't like the cars of the past that throwing on headers, exhuast and cone air filters alone will give you added power- it's more about the computer tuning with each upgrade you do, be it no upgrades at all or full setup.
I also read your post about your bumper- i'd recommend you save the money for when the guy sues you for damaging his property. He does have your cell phone and letter you gave him as proof.