Apparently, from the 'supported vehicles' page, EFILive supports the E81 ECM, and to get a little more specific, it seems EFILive supports the 2018 Cadillac CT6 3.0TT. From what I gather, the E81 is used in the 2016-2019 CT6, but the 2019 is not listed as supported. Are there any plans to support the 2019 CT6 E81 (3.0TT), or did GM go to fully encrypted nonsense that year for that model?