HP Tuners: Built for Duramax

New: 2024–2025 L5P Support with GM E42 ECM Service

HP Tuners is proud to be first to market with full custom tuning and diagnostics for the newest 6.6L Duramax platform. The GM E42 ECM Service provides support for:

• 2024-2025 Chevrolet Silverado 2500/3500 6.6L Duramax (L5P)
• 2024–2025 GMC Sierra 2500/3500 6.6L Duramax (L5P)

This upgrade service allows professionals to read, license, and write calibrations using our MPVI3 device and VCM Suite software.

What You’ll Need:

• MPVI3 interface
• Latest VCM Suite BETA
• GM E42 ECM Service – $999.99
• 8 Universal Credits

Total L5P Support: One Platform. All Years.

Whether you’re working on a 2017 model or the latest 2025, HP Tuners supports every L5P Duramax with powerful features, including:

• Full custom tuning support
• Advanced diagnostics and data logging
• Faster read/write times
• Dealer-friendly remote tuning options
• One toolset for all generations

Supported Model Years:

• 2017–2019 – E41 ECM + T87A TCM
• 2020–2023 – E41 ECM + T93 TCM
• 2024–2025 – E42 ECM (via ECM upgrade service)

Built for Professionals. Trusted by Enthusiasts.

HP Tuners is the preferred solution for diesel tuners across the industry. Whether you tune trucks for a living or own a fleet that needs reliable performance, our tools give you the control, flexibility, and speed you demand.

Download the latest VCM Suite BETA software and start tuning today.