HP Tuners GM E42 ECM Upgrade Service (2024-2025 GM Duramax L5P) - Global B

HP Tuners GM E42 ECM Upgrade Service – 2024–2025 GM L5P Duramax

Unlock the full tuning potential of your 2024–2025 GM L5P Duramax with HP Tuners’ E42 ECM Upgrade Service. This mail-in upgrade is the first required step for custom tuning using HP Tuners’ VCM Suite (Beta) and MPVI3 device.

How It Works:

1. Place your order.

2. Receive detailed shipping instructions for sending in your original factory ECM.

3. HP Tuners performs the unlock service.

4. Your ECM is shipped back, fully unlocked and ready for licensing and tuning.

What’s Included:

• E42 ECM unlock for 2024–2025 6.6L GM L5P Duramax

• Return shipping 

Requirements:

• MPVI3 device (MPVI2 and MPVI2+ not compatible)

• 8 Universal Credits to license ECM

• Original ECM only—must be in good condition with no broken tabs or damaged plastic

• Spare ECMs are not accepted

Supported Models:

• 2024–2025 Chevrolet Silverado HD 2500/3500 (6.6L L5P)

• 2024–2025 GMC Sierra HD 2500/3500 (6.6L L5P)