Here are pics of final installation of the ecu inside the glovebox. Main advantage of doing it like this is that
1) you can lock the box and not get the ecu stolen (happened to a budy of mine, got his oem ecu stolen... Wtf)
2) much much cooler than sitting in the engine bay
3) opens up space in the engine bay for oil cooler etc.
4) easy access to wiring, ecu etc.
Now, the provided harness from haltech is much too long for this, they initially assumed poeple would install it in the footwell ceiling, but I didn't like that idea.
I have advised them to offer a shorter harness for guys who would like to copy this setup. I don't have a radio in my center console so I can hide the extra harness wire there, but this might be an issue for SS with a radio in there.
Here is a pic of how I got the harness to come in the glove box:
Cutting the plastic is very easy, just using a basic solid cutter blade.
Test fitting the ecu, i have one hole lined up with the rib on the ceilling of the box, to setup the angle to be able to not bend the harness too much and cause stress on the wires and plug, and making sure glove box can close.
The I used plastic spacers for the 3 other holes to fill the gaps, and screwed it into the plastic of the top. Note the two rear screws need to be pretty long. The 2 front ones, not so much.
Here I wired up the ends of the boost solenoid to a deutsch sealed connector, makes replacing components easier if need be:
The Haltech harness has provisions for aux connectors for inputs and outputs the Elite has available and not used by the SS, so I made a harness for hooking up my AEM wideband to it, along with the boost controler solenoid:
I still have 3 other digital outs I can use.
This is the final connections made and finished for the ecu installation in the box:
Here you see how long (too long) the harness is after its connected to the ecu in glove box.
Now for the mefi connectors, I took out the bracket for the fuse box and ecu, and cut off the part where the ecu normally sits. More space for other things, and it doesn't look like there is unused stuff there:
Then, the mefi connectors have been tucked back into the center console so that they don't show in the engine bay anymore. Connect the haltech harness to the mefi connectors, tuck neetly in center dash, and that is it for installing a Haltech in your SS if you keep your oem dash (which will work out of the box btw):
Now next step here is setup of the IQ3 dash that will replace my cluster.