HP Tuners GM E42 ECM Service for 2024-2025 Silverado / Sierra 2500/3500 L5P Duramax (Global B)

The HP Tuners GM E42 ECM Service upgrades the original ECM in 2024–2025 Chevrolet Silverado and GMC Sierra 2500/3500 trucks with the 6.6L L5P Duramax. The upgrade is required for tuning with an MPVI3 or MPVI4 and VCM Suite.

Overview

This send-in service is for the E42 ECM in 2024–2025 Chevrolet Silverado and GMC Sierra 2500/3500 trucks with the 6.6L L5P Duramax.

Only the original ECM from your vehicle is accepted. Spare ECMs are not accepted.

ECMs with broken locking tabs or connectors are not accepted.

After the upgrade, Max Redline can provide custom tuning through log-based remote tuning or in-shop service.

Fitment

2024-2025 Chevrolet Silverado / GMC Sierra 2500/3500 6.6L L5P Duramax.

HP Tuners part number: ECM-E42-L5P-U

How It Works

1. Order the HP Tuners GM E42 ECM Service.
2. After you order, we email you send-in instructions.
3. Ship the original ECM from your vehicle, with intact locking tabs and connectors.
4. HP Tuners upgrades the ECM for use with an MPVI3 or MPVI4 and VCM Suite.
5. License and tune with VCM Suite.

What You Need

• Original E42 ECM from the vehicle; spare ECMs are not accepted.
• ECM must have intact locking tabs and connectors.
• MPVI3 or MPVI4 device and VCM Suite for tuning after the upgrade.

Need a Tune?

Once your module is ready, Max Redline can build your custom tune: log-based remote tuning or in-shop tuning at our South Florida shop. Call 954-507-6261 or email sales@americanmuscleperformance.net with your VIN and we will confirm the right service before you order.

FAQ

Which trucks does this service fit?
2024–2025 Chevrolet Silverado and GMC Sierra 2500/3500 trucks with the 6.6L L5P Duramax and E42 ECM.

Can I send a spare ECM?
No. Only the original ECM from your vehicle is accepted.

Can I send an ECM with a broken locking tab or connector?
No. ECMs with broken locking tabs or connectors are not accepted.