There's no mds solenoids or even the wiring for them,left in my 4th gen,and the eco light still comes on in it.
The hemi has had mds right from when it was introduced in 03,the engine was designed from word go with mds.
Some of the earlier HD trucks with the 5.7 were mds delete,but pretty well every other vehicle with an automatic transmission has mds.The exception being the 5.7 and 6.4 Challengers with the 6 speed manual transmission,they don't have mds.
The cams are differant from a MDS cam and a non-MDS cam,and of the course the MDS lifters are differant from a non-MDS lifter.When Ma Mopar deletes the MDS,she also replaces the MDS solenoids with plastic plugs that allows full oil flow to the lifters,as running a MDS engine,in non-MDS mode cuts oil flow to the lifters.If you're one of the guys who likes to defeat the MDS by running it with 8th showing on the EVIC,just be forewarned,you're cutting oil flow to the lifters,which isn't really a wise decision .
Every Hemi from 09 up has VVT / variable valve timing.
From 09 up all 5.7 and 6.4 trucks and 6.4 cars have had the variable intake manifold with a long runner intake for torque,and it switches over to a short runner intake roughly in the 4,000 to 4200 rpm range,the exception to that are the car 5.7's ,which don't have the dual runner intake,they just employ a long runner intake. They also employ a differant cam,from the truck 5.7's because of the intake manifold