HP Tuners is thrilled to offer support for the GM Global B E99 ECM found in various 2020+ GM vehicles (listed below). This one-time, send-in upgrade service is required to enable diagnostics and tuning capabilities in VCM Suite (BETA).
2020-2023 Chevrolet Corvette 6.2L (LT2) (non-Z06)
2022-2023 Cadillac CT5-V Blackwing 6.2L (LT4)
2020-2023 Cadillac CT5-V 3.0L TT (LGY)
2022-2023 Cadillac CT4-V Blackwing 3.6L TT (LF4)
2023 Cadillac Escalade-V 6.2L
This one-time service upgrades your original E99 ECM (Global B generation only) and is required for tuning using HP Tuners’ software. Users must physically remove their original E99 ECM from their vehicle and ship it to HP Tuners’ headquarters for servicing. Once upgraded, users have full access to calibrate, log, and scan via the OBDII port.
Everything you need to tune your E99 ECM vehicle with HP Tuners:
This one-time, send-in GM E99 ECM Service (Global B) (upgrade service).
Download the latest version of VCM Suite BETA 
Once upgraded, purchase (8) Universal Credits to license your E99 ECM/vehicle.
GM Global B vehicle support is only compatible with the MPVI3 interface.
Note: Universal Credits for licensing are not included in the cost of any upgrade service or purchase. Credits must be purchased separately
No need for an IMMO Relearn, Crank Relearn, or to perform the “Replace ECM” Function in VCM Scanner on the stock ECM. 
If you select the option to purchase a new GM E99 Pre-programmed ECM , you will need access to GM Dealer diagnostic software to relarn the IMMO, Crank Relearn and perform the "Replace ECM" function in VCM Scanner on the replacement ECM