GM Duramax EZ LYNK LMM/LML/L5P Tune Package (2007.5-2023)

EZ LYNK Duramax Tuning System Summary

Upgrade your driving experience with the EZ LYNK Duramax Tuning System, the easiest way to unlock the full potential of your 2007.5–2023 GM Duramax. Forget about messy wires and complicated setups—this cloud-based system lets you boost performance, track live data, and get remote help from professional technicians right from your phone.

Whether you’re looking for the full AutoAgent 3 tuner or just need the digital tuning files for your specific truck, we’ve got you covered. This pack is fully customizable to your needs and includes all the SOTF (Shift-On-The-Fly) switches you need to change your power levels instantly. It’s professional-grade tuning made simple enough for any diesel truck owner to use.

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Compatibility

Duramax LMM

• Years: 2007.5-2010
• Makes: Chevrolet Silverado, GMC Sierra
• Models: 2500HD, 3500HD
• Engine: 6.6L Duramax LMM (diesel)
• Body: Pickup

Duramax LML

• Years: 2011-2016
• Makes: Chevrolet Silverado, GMC Sierra
• Models: 2500HD, 3500HD
• Engine: 6.6L Duramax LML (diesel)
• Body: Pickup

Duramax LML Cab & Chassis

• Years: 2011-2014
• Makes: Chevrolet Silverado, GMC Sierra
• Models: 3500HD
• Engine: 6.6L Duramax LML (diesel)
• Body: Cab & Chassis (C&C)

Duramax L5P

• Years: 2017-2023
• Makes: Chevrolet Silverado, GMC Sierra
• Models: 2500HD, 3500HD
• Engine: 6.6L Duramax L5P (diesel)
• Body: Pickup
• Important: 2017-2018 models require GM E41 ECM Unlock Service or pre-unlocked ECM

Key Notes for 2017–2023 L5P Owners

These years support Switch-On-The-Fly (SOTF) tuning managed through the factory steering-wheel controls. Since the truck handles all map changes electronically, no add-on switch is needed or supplied, giving you a clean, OEM-integrated setup with full switching capability.

NOTE: This tuning package is not compatible with PTO-equipped units.

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EZ LYNK Duramax Tuning Package Features

• Fast 60-Second Setup:
  • Connect the EZ LYNK Auto Agent 3 to your truck's OBD2 port.
  • Install the EZ LYNK Mobile App on Android or iOS.
  • Pair via Wi-Fi for immediate access to cloud-based Duramax tuning.
• Comprehensive Diagnostics:
  • Perform full OBD scans and monitor data view, log, and share with your technician.
  • Quickly read and clear Diagnostic Trouble Codes (DTCs).
  • Receive ongoing firmware and calibration updates wirelessly.
• Cloud-Connected Tune Management:
  • Download and apply tune files directly from the EZ LYNK cloud platform.
  • Switch between performance, towing, or other power levels whenever needed.
  • Automatic data syncing preserves VIN-specific tuning security and long-term reliability.
• Fleet-Ready Functionality:
  • Designed for both individual truck owners and fleet managers.
  • Share data logs, service insights, and diagnostic information remotely.
  • Grant multi-user access to simplify oversight, coordination, and communication.

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Platform Compatibility:

• Web Portal: Review and control your tunes from any modern web browser.
• EZ LYNK App: Supports iOS 12.0+ and Android 8.0+ devices for wireless tuning management.