HPT GM E68 Global B ECM Upgrade (ECM UNLOCK) (*VIN & Original ECM Required*)

Take Your Corvette’s Tuning Potential Further

Your Corvette was built to deliver an extraordinary driving experience. The HP Tuners GM E68 Global B ECM Upgrade opens the door to custom calibration of its factory engine controller, giving your tuner access to the tools needed to tailor a supported Z06, ZR1, or ZR1X to your performance goals.

This one-time, send-in service upgrades your original E68 engine control module for use with HP Tuners’ VCM Suite. Once the upgraded ECM is reinstalled and licensed, you can scan, data log, read, edit, and write supported engine calibrations through the vehicle’s OBDII port using the required hardware and software.

Why Choose This Upgrade?

• A foundation for custom tuning: Enable calibration access through VCM Editor and diagnostic data logging through VCM Scanner.
• Keep your original ECM: This service upgrades your existing controller rather than replacing it with another computer.
• Simplified reinstallation: No immobilizer relearn, crank relearn, or “Replace ECM” procedure is required when the ECM returns to its original vehicle.
• OBDII access after servicing: Perform supported diagnostics and calibration work without removing the ECM again for routine tuning.

Supported Vehicles

• 2023–2026 Chevrolet Corvette Z06 with the 5.5L LT6 V8.
• 2025–2026 Chevrolet Corvette ZR1 with the 5.5L twin-turbo LT7 V8.
• 2026 Chevrolet Corvette ZR1X.

For supported Global B E68 ECMs only. This is not the ECM upgrade for Corvette Stingray or E-Ray models. Confirm your exact vehicle and controller before ordering.

Required to Complete Your Tuning Setup

• Your vehicle’s VIN and original E68 ECM. The ECM must be removed and sent in for the upgrade service.
• An HP Tuners MPVI4 interface, sold separately. MPVI2, MPVI2+, and MPVI3 are not compatible with E68 Global B support.
• The latest version of VCM Suite BETA.
• 10 Universal Credits to license the ECM, sold separately.
• A suitable calibration developed for your vehicle and modifications.

Important Purchase Information

This listing is an ECM upgrade service, not a replacement ECM, credit pack, or preloaded performance tune. The service itself does not add horsepower; results depend on the calibration and vehicle setup. Transmission-controller services and licensing are separate where required.

Plan for vehicle downtime while your original ECM is being serviced. HP Tuners notes that a spare ECM cannot be temporarily installed and relearned during this process. After the upgrade, engine calibration work must use the supported HP Tuners tools; dealer diagnostic tools and VCM Scanner continue to function normally.