Finally got around to changing my transmission fluid and filter, only hitting a few speedbumps.
First, the stock drain bolt simply wouldn't come off. Completely rounded off the head, so I got a new drain pan.
Then I had to get that PITA shift cable bracket out of the way next to a scorching cat converter. Those blind torx bolts were infuriating.
Upon draining the fluid by slowly (and messily) dropping the whole drain pan, I found out the new one didn't fit, it was much too shallow. So, I ended up having to reuse the stock pan, and will obviously have to suffer through a pan drop instead of having a drain pug for the next time.
Then after getting everything back together, torqued to spec, and topped off with fluid, I got to shift through the gears and nothing happens. The shifter moves, but the new gear isn't underlined on the DIC and i don't hear anything. After a few minutes of panic thinking I somehow blew the trans, I remembered that PITA shift cable and that I should probably reconnect it...
Whole process took a few hours, and everything's running smoothly.