Nic
Active member
so i have an 03 6.0 with LOTS n LOTS of cash in it and dont decide to get rid of it but ive got quite the itch for a 6.4....the tuning power difference is crazy compared to the 6.0...i want to get away from HPO...so if i look at one, what am i looking at as far as basic things i NEED TO DO 1st besides the usual EGR welds and full exhaust/intake etc...when do internals become an issue with just tuning..tranny? isnt it basically a 5R110 with a stouter converter?