Joe,
Funny you should ask about the 123 trap. Here's a photo I took from another thread about the same thing. Note that you can barely see the trap but if you look carefully on the photo of the right (passenger) side of the engine you can see the tapered end of the trap behind the black A/C hose. On the 123 it's under the turbo instead of next to it like on the 124. The dead give away for the 123 trap cars is the location of the air cleaner, forward of the turbo.
123 trap photo