2024–2026 Duramax L5P HP Tuners E42 ECM Global B Send-In Unlock (D)

Unlock the full potential of your 2024–2026 Duramax L5P with the HP Tuners E42 Global B ECM Send-In Unlock Service, designed specifically for Black Label Diesel Tuning using the HP Tuners VCM Suite software. This one-time, send-in upgrade service modifies your GM E42 Global B ECM for the L5P platform to enable advanced tuning and diagnostics, giving you control over your vehicle’s performance.

Key Features

One-Time ECM Upgrade
Send your E42 Global B ECM to HP Tuners’ headquarters for a professional unlock service, enabling custom tuning with VCM Suite BETA software.

Fast Turnaround
The upgrade process takes 3–5 business days, excluding shipping time.

Everything You Need to Tune Your 2024+ L5P ECM

Purchase this E42 Global B ECM Unlock Service.

Download the latest VCM Suite BETA.

Purchase 8 Universal Credits, sold separately, to license your upgraded ECM.

Ensure you have an RTD4 Device.

Purchase Black Label Diesel Tuning E42 Global B ECM Custom Tuning.

Note: Universal Credits for licensing are not included in this service and must be purchased separately.

Important: ECMs with broken tabs will not be accepted for upgrades.

Shipping Information

Send Your ECM To:

HP Tuners, LLC
ATTN: GM E42 ECM Service (L5P, Global B)
700 Eastwood Ln
Buffalo Grove, IL 60089

Customer Responsibility

Customers are responsible for shipping costs to HP Tuners. The checkout shipping charge covers return shipping of your upgraded ECM only.

How It Works

Confirm and Purchase
Verify your vehicle’s compatibility and enter your truck’s VIN to add this service to your cart.

Complete Shipping Form
After ordering, fill out the shipping form provided CLICK HERE.  Include the completed form in your package.

Package Your ECM
Remove the E42 Global B ECM from your vehicle and securely package it with the completed form.

Label Your Box
Write your HP Tuners Order Number on the outside of the shipping box.

Ship to HP Tuners
Use your preferred carrier to send the ECM to the address above. Shipping costs to HP Tuners are your responsibility.

ECM Upgrade
HP Tuners will upgrade your ECM for tuning and diagnostics, then ship it back to you within 3–5 business days, excluding shipping time.

Install and Tune
Reinstall your upgraded ECM, license it with 8 Universal Credits, sold separately, and begin tuning with your RTD4 Device.

Purchase Black Label Diesel Tuning Custom Tuning
Contact Black Label Diesel Tuning to purchase custom tuning for your vehicle and dial in your truck’s performance.

Take your 2024–2026 Duramax L5P to the next level with HP Tuners’ E42 Global B ECM Unlock Service for Black Label Diesel Tuning.