I am looking to purchase a Diablo chip for my truck but I need to find the computer box. I have looked under the hood, on the firewall, and behind the driver-side kickplate. Do I need to remove the steel panel that has the emergency brake attached to it?
Under the dash in the middle I found a box that is inside a blue plastic cover. It looks like the correct dimensions for the computer box, but the numbers on it (F5TF-14B056BA) don't correspond with a computer box number.

Thanks for any help!!

 

It's accessed from the engine compartment, firewall area right against the drivers side fender. All you will see is the wires and plug.

 

Thanks for the info and quick response!