I can hopefully answer. Dave is making his engine bay as clean as possible, removing anything un-necessary like the SAI. We did mine this morning and with those 2 extra pipes out it looks much better(our XE car has the BSH intake and I don't have a breather filter for that secondary intake, it just looked lame with a pipe that connected to nothing floating in the engine bay). Also, I think i found a way to get the air pump out without removing the bumper, I just need to put the car up and take off the plastic shield underneath and I should be able to get to it.
As for the CEL, I drove ~50 miles and didn't get a CEL, then later I got in my car and had a CEL, so I'm going to figure that out.