I'm glad you like the EB. I've heard/ read lots of people first try the 5.0 ,and are quite happy,but the few that try the EB,likely are so much more impressed its actully and easy upsale.
As for your version of sync,there are 2 versions i believe . mine is the simpler version,not quite all the features but more than enough for what i want. Digital door locks are definetely nice for the times i have no place to carry keys. i lock em in ,hidden of course and go,then just key in number and walla...your in. Would i do this all the time??no ,but it has its benefits.

As for the throaty growl. There are quite a few exhaust upgrades,which mostly all make them noisier to whatever degree. I'm trying to find one that upgrades power,is all Stainless and Doesn;t increase noise too much or then I,m never gonna hear the end of it as my wife Drives the truck more than i do. Also muffler choice will dictate as well.