Surprised there aren't more comments bc, I thought this was informative. I have a '16 Outback also with a 3.6R. Loved the video showing the details of the installation. Like the hitch set up too as I will be towing a teardrop when I fly fish in the Sierras. Thanks for showing the video. You got my vote for more Subaru vids!
So an update, those mufflers don't hold up for long. I'm now running the stock mufflers with the Spec-D midpipe (catback). Nice tone now, a little louder than stock but more deep tones, no drone with the stock mufflers. For the price it was a good experiment and am still happy with the mid pipe!