I have an ebay IC for sale, it is a GodSpeed. It has the "STi" logo stenciled in red on it. It will not work with the stock WRX Y-pipe. You will need to do one of the Y-pipe mods in one of the threads on this site.
I will include a piece of samco pipe to make this easier.

Asking $150/OBO

Also considering trades for something a lil' smaller. Sti size or so.
This thing is Huge.

any pics? I might be willing to trade you for a STi tmic but would have to discuss the conditions of the trade via PM. Pm if interested

PM'ed