GM E99 ECM Service (Global B)

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). Shipping address for send-in E99 ECM service (Global B): HP Tuners (ATT: GM E99 ECM Service [Global B]), 700 Eastwood Ln, Buffalo Grove, IL 60089 This is a send-in service which means you must first send us your original ECM. Please read this page in its entirety before purchasing. Get Your GM E99 ECM-Equipped Vehicle Ready for Tuning HP Tuners is thrilled to offer full custom diagnostics and tuning support in VCM Suite (BETA) for GM’s Global B E99 ECM. This controller can be found in the following supported vehicles: 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 Don’t see your vehicle?