pooop. Pretty sure I need to get on that new trans purchase asap. Slipping fairly bad in 3rd, manual mode. And there are times I'm getting a violent shudder around 4-4.5k. Car was way up to temp for a while, but my trans temp gauge was hovering around 140 when it slipped badly. After it came up to 160ish, it seems to be holding, but I still get the occasional violent shudder.
Its an 05 OBXT w/ forged pistons, VF52 peaking at 21, FMIC, DW1000s, DW300c, inlet, intake, DP, catback. The intake, injectors, pump, catback and FMIC were just put on within the last month and I (was) starting to dial it in.