What if I get a 6.7 with ecm and harness.it is pretty easy. Pull your 5.9 out. Place it next to your new 6.7. Swap over your ecm, harness, exhaust manifold and turbo, take out your injectors and put 03-04 spray pattern tips on them, put it all together and put the engine back in.Can I drop in a 6.7? Do I need any extra controllers, or wiring stuff?
This was when I just pulled out my 5.9 and put it next to my new 6.7
Would it be direct drop in and work?