For those of you who have the holley terminator x, are the wires long enough to run inside and under the dash? The mopar harness isn't very friendly in that aspect, forcing it to be mounted on the pass side inner fender.
I mounted my Holley HP ECU under the drivers side fender above the brace. I made a plate for it to protect it from debris or a blown tire. They are sealed so moisture should not be an issue.