Well, I do have an AIS intake and the truck is straight piped, not exactly 4", but better than stock. So far power has not been my biggest concern, it pulls my trailer along at a steady 65-70 without much problem. I just thought it would be a good discussion to have. My thought with the bigger fuel tank is that I could usually just fill up when I don't have the trailer. Often times we will have day trips away from the camper, so that would allow me to fuel without trying to get a camper in and out of a fuel station. Those titan tanks sure are appealing, but they sure are expensive!
For those of you that have one, does your stock fuel gauge work with the titan tank? With my short bed, I hate to give up any more room to an in-bed fuel tank, but they can be found used and for MUCH less than a titan... Decisions decisions...