Not sure what you need help with exactly? Remove exhaust and heat shield, mark driveshaft position at both ends, remove driveshaft (With a helper), separate the 2 halves, press old center carrier off, press new one on, and re-install. May need to get a shop to do some of that if you don't have the right tools.
Edit: That's assuming you can get a center support bearing on it's own. I remember doing it on my 2010, but that's a bit different. If it's not available on a 2015 you might have to replace the whole drive shaft.