This HOW TO write-up on Adding Performance Shift has been added to the How To Section and can be found HERE
I posted this on the KC and STL Boards, but I figured I would post it here as well.
Its just the installation portion of the PS wiring to the PCM. Everyone varies on how they setup their switch for the PS option. Whether it be the Shifter Button or a flip switch located somewhere else. This is the part is the trickiest for most people.
I hope you all find it useful