I'm fairly technical, but don't know sh*t about this new MDS technology.

What's mods were done to the 05 hemi to make it MDS? Or even a better question, can MDS be added to my 05 RAM Hemi?

I'm sure a lot of this is computer, probably some new electronics. But I wonder if this could be added to a previous year hemi, or would it be cost restrictive?

2005 Dodge RAM 1500 4X4 Big Horn Edition 13MPG on a good day

 

Its basically the same MDS engine they'd been using the chrysler 300c and the charger (5.7 hemi anyways). So what happens is the engine shuts down 4 of the pistons when you don't need them and starts em back up when you do. They claim you get 20% better mileage, and maybe you do. But on the sticker it is listed as only 1 mpg better than the '05. I drive an '06 1500 QC with this engine and I get high 17s on the highway. Occasionally I'll get 19 or 20 if the road is flat and there's no wind.

 

IT ALSO USES COLLAPSABLE LIFTERS WITCH PREVENTS THE VALVES FROM OPENING. PLUS ALL THAT COMPUTER STUFF. WHEN YOUR AT CRUISING SPEED OR SLOW CITY SPEEDS. HOPE IT HELPS