https://www.importimageracing.com/
They have everything you need.
He is correct. Josh is awesome, tell him Dan told you to talk to him or Pretty much everyone on the unysoc.org board. He'll give you awesome prices. Either call or hit him up on AIM
on aim its importimagerace thats usually how I get in touch with him.
I just sold a dp for your car but still have the cbe. Its a Magnaflow, sound is excellent, quality is excellent as well. I'll post some pics when i get back from NC.
And this, only thing is double check fitment, I'm not sure if there are any differences between 08+ to the 11s. I know for my STi I can't use anything 08-10 exhaust wise. But if it fits, its a good price for a really good exhaust. And DPs can be had cheap enough too, check with Josh at IIR on the price of an invidia catless DP, you'll be super happy with the price.