I do love the Hemi! It runs flawlessly. I'm making changes, of course, because that's what we do around here and I'll start a thread on what's coming up. So, here's what I'll say about power mods. Power mods appear to lose power over time. After living with the 6.4L every day I find myself saying, "eh. . . I could use another 200hp." Of course, I haven't driven a stock JKU since I made the change and I suspect that a dose of "reality" would re-charge my power mod instantly.

As for a recommendation, if I had a manual trans I'd go for the RIPP and set it up just like BB. Strip off every piece of truck that isn't purposeful and use as much carbon fiber and aluminum as possible to get the weight down.