Instead of using pipe that is bent into a shape to route from the turbo outlet to the front pipe it uses a cast molded piece to do the same but with more control over the shape, routing, inner diameter, outer shape to allow for mounting points, and optimize exhaust flow. In short cast downpipes...
Cast instead of just piping, allows for more inner diameter and sharper turns while keeping that inner diameter, also retains factory heat shields to keep under hood temps down. looks more "finished". I imagine performance wise they should be near similar though.
Not sure who is doing your social media... but whoever it is should devote a little more time to the forums as well. A great product with great CS presence goes a long way.
Thanks for the update... Are you guys going to share tuned numbers? Almost everyone getting a DP will also be getting a tune. My guess the gains will be more pronounced with such.