Don't right off their OG hatch exhaust, the Magnaflow is not
that quiet. I'd say it is subdued compared to other subarus I've heard with clear full 3" exhausts. Listen for yourself, this is mine with stock DP, non-resonated Nameless midpipe, and nameless (using a magnaflow) axleback. She rumbles for sure.
Right after install:
Recent brief clip (exhaust is now definitely broken in)
http://flickr.com/gp/13868942@N00/2b9PE2
BTW, John, the new options for the hatch look beautiful! Guys looking now are lucky to have such a sweet set of options; I'm sure all of them will be of the highest quality and sound great.
I recently took off the exhaust after going through the winter to clean it up. The stainless they used looked like new after minimal polishing, very impressive.