Jacobvant
Junior Member
I have been doing a little bit of research, I currently have the 5.7 hemi in my 2015 1500. I was hoping to get some opinions/suggestions on this idea. I was thinking of swapping the 5.7 intake out for the 6.4, as well as throwing a 4” legmaker short cold air intake on that. I also thought of maybe upgrading the throttle body to an 87mm. If this is all recommended would a spacer be something I should look into as well? All this being done would I need a full tune?