Originally Posted by LOTTS73
I was wondering about that, Chip takes care of the voltage increase to the IDM?
No, the IDM increase (and here I'd say Swamps with their HiFreq/HiVolt mod is better) has Nothing to do with the PCM. You'll still see a benefit with a modded IMD when you add programming (the injectors kinda become more "efficient").
Here's the thing though, the biggest increases (you know, the ones they all advertize) all come from replacing the old, 100v, IDM's. You'll not get that 30hp addition over a 120v one...