Wait a min, you mean this whole time, i could have just found a OS in the repository that supported 3 bar and write entire, that simple ? So what happen to the tech 2 being needed to do this and why didn't you tell me this before ? Or is there something im not understanding correctly here, after all the months of learning how to do a turbo on my truck, then being told i needed a tech2 gm dealer to flash my P59 controller with another OS.. i have got to be missing something, if all it takes is a tune from the repository and hpt . i don't know whether to be upset or happy .. but i do know im very confused now..