I have a 2005 CTD. Had the predator with the R28 version. Ungraded it to the R30. Made sure truck was back to stock program before loading new R30. I went to the post R30 custom tunes and now I Can't load a extreme RKL into my truck. It loaded ok from the computer to the predator. But when I go to ...

Yeah!!!, I got the RKL ext tune figured out. Had to go in performance tunes and then into custom tunes. I kept going into extreme tune and it wouldn't work. Anyway I just schooled a new 6.4L ford twin turbo haha, eat your heart out ford lovers!!. He was talking smack about his new "twin turbos ...

There is no option under the performance tune heading for custom tune. I plugged it into the truck. Say's "booting cummins" then I have R26 version. Goto performance tune. Pick the power puck stack program option. Say's "loading" goes to 100% complete then it comes up as cannot load custom tune and ...

Does the RKL extreme tune work for the 2005 ctd U7130?? I tried downloading it into my predator with the dsdownloader. When I go to install into my truck. It says cannot read or load version 1.8.0.0 or something like that. I have version 26 in the predator. It tellls me to use the custom tune and ...