I have a 2013 Silber kit on my 600 Pro. Runs flawless if you know how to adjust fuel controller.
2014 kits come with Bully dog controller, should be even better without any adjustment. Pull and ride.
The 600 is by far a more reliable motor for sure. Buying a 600 starts out about 2000-2500 cheaper to start with, so that put towards a turbo kit and it would be a all around fun machine. Love to be the underdog. Add 2 more lbs of boost it should run all day long against a 800 turbo. Will it be a...