Well, after nagging Rallye Lexus for about a month now, it seems that I'm finally going in for an update this Friday.
They found out about TSIB about 1-2 weeks ago but they didn't have the TRAC ECU. I had them order one for me and they finally got it recently (although they didn't call me to let me know)
Hopefully, I'll look like this on Saturday:
Does anyone know by any chance where the ECUs are located and how long it's supposed to take (they are asking me to leave the car for the day)?