ECM upgrade help

[Rare99]

Hello everybody,

I am new to this board and need some help with my 99 Firebird. I have a purchased an ECM performance module for my ride from JET but I am confused where to install it. I know its in the engine bay on the passenger side and I can see the ECM there but there seems to be 2 of them side by side each other. Can anybody tell me which one to pull? There is the one closest to me if you are standing in front of the car and there is another one directly behind it and they both look the same to me. Any info would be greatly apprectiated.

[99 Camaro SuperSix]

Re: ECM upgrade help

I have a jet stage 2 and it went in one the bottom ecm but i had the same question and called up JET and talked to a tech he said that they are color coded on the hook up (mine was clear)