My engine mods are just the ones I've listed: CAI and tune. Everything else is stock.
When it comes to spark plugs, I've read around and it seems the Autolites are popular. I'll try those next time I change the plugs.
When we look at my issue from a logical standpoint, I think we can rule out things like a clogged fuel filter or bad plugs. The engine runs perfectly fine once I gets "over" the stalling problem. The problem is either there or not. There's no middleground. Once the engine starts up and idles, it stays that way until I've shut it off and kept it off for 5+ hours in the cold.
If I'm least knowledgeable in one area, is has to be electrical. Could the cold cause the ECU or some type of wire to seize up somehow?
These past few days have been warm so my car has been running like a champ.