Well I think this is absolutely possible. Hands down. After some sweet talking I was able to send Dustin a StreetMax kit. He will be piloting one of our first two 25% over pumps which are capable of 650+. He has full access to a dyno, 2015 base files for mcc, and a very good tuning knowledge at hand.
Also keep in mind that I made 540/1015 with the dpf on with my 2015, towed 20K while never de tuning and running better mpg than stock. Obviously you can't floor it everywhere or you can soot load the dpf. But with sensible driving there is absolutely no reason it will not last. You just cannot rag on it at every stop light.
I'm super excited to see these results. And glad I can be a part in helping make this happen. It was a goal for my 2015 but now since Dustin is doing it, I am piloting dpf off tunes and going for 650+ on stock appearing... Rods allowing of course...