I found this which is interesting.
http://www.burgertuning.com/N63_Jb_B...nce_Tuner.html
"This plug and play tuner attaches to sensors in the engine bay and works with your factory DME tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. Power gains on an otherwise stock car are up to 25hp and 40tq to the wheels. Installation is very discrete and it quickly removes without a trace when needed. Fuel economy during normal driving is unchanged."
I just don't see dyno result for 2013+ engine.