GM E99 ECM Service (Global B) - Upgrade Only Coupler Delete Driveshafts Dark Mode Disables interior lighting

Dark Mode Disables interior lighting

Our upgrade-only option will upgrade your T87A TCM to enable tuning

No other tuning or calibration tools can be used with the ECM (including dealer reflash tools)

HINSON LSx V8 Mazda RX8 Cooling System (Single Fan)

Medium-Durometer Urethane – A perfect balance of stiffness and comfort

GM E99 ECM Service (Global B) - Upgrade Only Coupler Delete Driveshafts Dark Mode Disables interior lightingHP 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