So I have a 2001 extended cab short box, auto, with a K&N cold air intake and 4" exhaust. That is all that is done to the truck right now. When I was driving it recently it incrementally started loosing all power. The rpm's would drop down to about a grand and it would just sit there doing nothing even with the throttle all the way down. I would have to turn the truck off than back on in order for it to get it power back in order do drive it and get it back to the house. So still kinda newly getting into the diesel world I brought it to the local dodge dealer and had them run a diagnostic test on it. In doing so the shop told me that the waist gate on the turbo was stuck and or sticking shut, my stock lift pump and vp44 are junk also and need to be replaced. With these three things plus labor it would be about 5k to turn my truck back to stock. That is what I do not want is a stock truck, so if all of you on here, and your vast wisdom could point me in some sort of right direction and help me with the parts that I would need to replace the parts listed above and also give it a little more go power that would be great. Eventually I would like to be at about 550 hp give or take a bit when everything is said and done. i have $5000 bucks so any advice on injectors turbos head studs controllers lift pumps ect... ect... would be amazing. Thanks for the help.