Hypertech programers
It will take into acount any gear changes/changes in tire sizes to re-calibrate your speedo to read correctly
And its easy. don't know about the Jet
Performance between the two? I have no clue, I only own the Hypertyech
X2 for Hypertech - it's money well spent, and you can use it to get (and clear) DTCs, change the speedo for bigger tires, new gears... but most importantly, it DOES make a difference in performance.


