Ok i read several posts but can't seem to locate information i am seeking. I have a 2013 Ram 2500 5.7 non mds auto 4x4 swapping in a 2016 challenger 6.4 srt with 40k miles. So i plan to rebuild trans and new torque converter. what is good kit for 66rfe and what converter is appropriate? I plan on keeping engine totally stock. Will my 5.7 ecm be able to be flashed for 6.4 srt? or do i need a new ecm? I am not smart enough to do myself and want to send off to be done. Who has done this? any suggestions? Will the wiring on 2013 5.7 swap over to 6.4? he left all wiring on 6.4 but it was using manual trans. what kit parts do i need for back motor to 66rfe? Note: both motors are non mds models does that help with answering ECM question? Also, i plan to keep shorty factory headers and run new mid pipes to xpipe and dual exhaust is really only mod i want to do. I want to be able to have fun truck. this is my old work truck now i have diesel work truck and going keep this for fun money pit.