First of all shout out to [MENTION=62]Sekred[/MENTION], [MENTION=27]arlisscm[/MENTION], and [MENTION=5851]Raindog[/MENTION] for fielding my questions and helping out while I was brainstorming on a resolution. These guys were more helpful than some of the vendors and fabricators on this forum that I reached out to.
I noticed what appeared to be oil covering areas under the motor and droplets here and there around a particular area around the TIAL BOV. The BOV is directly under the turbo oil drain and in front of the oil pan drain plug. For those not familiar with the DHM kit, it looks like this.
So, I crawl under the car to see where the oil was coming from and if anything that could leak oil was loose. Nothing, I found nothing which wasn't exactly comforting. What exacerbated the issue was that there was what appeared to be oil spray or mist in areas that oil shouldn't be at. Seeing this, I thought that the oil was perhaps coming out of the BOV and being blown all around the area. I pulled off the pipe with the BOV to inspect it and it was internally bone dry. At this point all I could do was wipe the oil off and put the pipe back on, lower the car back down and check in a few days to see if the oil leak would reappear. After a day of driving signs of an oil leak had reappeared. I get back under the car and there was oil dripping from the BOV and oil mist in the surrounding area. There were no obvious signs of leaks at the turbo, oil drain plug or BOV, but oil was coming from somewhere.
I had a hunch that it could be the oil drain tube itself, but there were no obvious signs of a leak from it. I decided to test my theory out by wrapping the oil drain tube with some scrap fiberglass heat wrap to see if it would be soaked with oil. After another day of driving I started to notice signs of a leak again. I get under the car and unwrap the drain tube and see that the fiberglass heat wrap was soaked full of oil. BINGO! we're getting somewhere now. I pull the oil drain tube out and have a look. At first it wasn't obvious, but there it was... a crack in the bellows of the tube. There was no way to see the crack from the bottom of the car, the only way to see it was to have the oil drain tube off and out in your hands.
Oil soaked fiberglass heat wrap.
The crack.
Here's what you get when you order an OE drain tube, a metal one unlike the one that originally came with the car. The metal one is what I needed, so it was perfect.
The fix.
Test fit.
Done, no more leaks.