Another update: got to finally use the smoke machine and oh man is that a game changer! In short, there was a good size leak at the TIC/coupler connection, various leaks on my intake setup, and a major leak from the turbo area. In order to do the TIC fix I needed to pull the silicone inlet off which I wasn't looking forward to, but after I got the TIC stuff handled and back on the car I took the opportunity to smoke it with just the adapter piece that bolts into the turbo (the piece the silicone inlet clamps to). Using the intake cone adapter I shoved it in the inlet piece and smoked it and there were no leaks! I couldn't believe it! As happy as I was to see no leaking, I'm equally embarrassed my "mystery" leak has been the inlet the whole time smh... In my opinion it just goes to show how poor fitting the E series inlets seal to the turbo.
But anyways, once I established no leaks I knew I just needed to shore up the inlet side and make sure to connect it properly. Starting with this, I found a lot of leaking where I shoved the 3.5" elbow into the inlet. To seal that up I used Flex Paste and I have to say it did an amazing job! I also needed to use an oversized o-ring on the OCC adapter so it sealed better on the PCV port on the inlet.
Once those were done, I took my time and carefully got the inlet back on the turbo and smoked again to make sure it was still leak free and buttoned the car back up. I took out to work this morning and while it's feeling the peppiest it's ever felt (since no leaks), its still throwing the damn lean codes: 2BC0 and 2C42
To recap, there are brand new O2 sensors, hpfp, spark plugs, and MAF on the car. Before throwing more money at replacing other sensors I'm going to smoke the exhaust system and see if any leaks show. I'm wondering/hoping if that pot hole jarred a connection loose that's causing it. I've literally never seen my car get smoke tested and not show any smoke and it currently baffles me that it's finally there but throwing lean codes. I thought it would be a vacuum leak but I can't find any now. The shop I went to owes me a follow-up smoking so I'll go there again to have a second opinion and extra set of eyes on it.
I'll keep this thread posted on what ends up resolving the lean codes and once I have actual logs verifying my WGDC issues are over I'll post those up as well. Thanks to everyone for your insight and suggestions throughout this process!
Edit to add I checked out my PCV heater and mine is not easily usable
Not sure what happened, but mine was cut off so I don't have a good way to just slap a hose on it and incorporate it into my inlet. I may look into it further but we'll see.