Just bought a 5.7 for my Duster

My 05 engine from a 2500 4x4 truck does not have EGR.

I rewired the factory harness and will be using a stock PCM. I'll likely eventually use a predator to tune and maybe add a cam, but my power desires are pretty conservative.

One other option no one has mentioned is the programmable EMS. It's pretty pricey though. The mopar part number is: P5153528 computer and P5155529 harness for EFI applications.