You can make it fit, but it's not a direct bolt on. The midpipe to cat flange is rotated opposite of what you need. The midpipe to axelback is also rotated, but not enough to fit a flange adaptor on. Then, when you have it all together and in the hangers, it's about an inch or two too short.
If you take it to a muffler shop though they'll be able to fab it right up for you. Come spring, I may do just that and fit my WRX dual tip onto the Forester. The Stromung axel back is a bit loud on road trips.