The heads must be completely new castings and things are likely moved around to make room for the Direct Injectors. There will be new high pressure hard lines (unmoveable) going to a cam driven super high pressure pump mounted on the engine somewhere. That routing might interfere w Centrif SCs...
The body mods will grow on you just like the 2015 did. Almost no one loved those when they dropped.
I'm really worried the refresh has set back the modding community by having to reengineer headers, superchargers, turbo kits, CAI, just about everything.
The way those prices come down is for a...