Those are the new engines in the new 44 from Miami. There is a set of those being built right now, and a few sets on order. There is also a similar setup just a different displacement being rigged into a 48 Cat.
The set in the 44 has performed flawlessly and makes incredible power and torque, yet is extremely docile around the dock. Really a nice package. The Warranty is also a nice option, as well as the live data logging.