I just purchased a Predator for my 07 Ram Hemi and i was hoping someone can answer a few of my questions. I noticed alot of people talk about getting custom tunes from Diablo or from CMR. Do you usually have to pay for a custom tune or how does that work?
Also, if that was the case, will they make a tune for my truck with my minor mods, K&N CAI & Cat-Back Exhaust with 87 (89 or 91) octane?