AMDP 2024-2026 6.6L L5P Duramax HP Tuners Custom Tuning

Unleash the full potential of your 2024-2025 L5P Duramax diesel engine with AMDP's Custom Tuning solution. Designed for truck enthusiasts who demand reliable, high-performance upgrades, this tuning package delivers optimized power and efficiency while maintaining durability. Whether you're towing heavy loads or seeking a more responsive driving experience, AMDP's tuning elevates your Duramax to meet your needs.

Key Features:

• Five Distinct Power Levels: Select from five power levels, ranging from stock to an impressive 150 horsepower gain, tailored for everything from daily driving to heavy-duty tasks.
  • Level 1: 30 HP over stock – Ideal for improved fuel efficiency and light towing.
  • Level 2: 60 HP over stock – Enhanced power for moderate towing and daily performance.
  • Level 3: 90 HP over stock – Balanced for aggressive driving and light towing.
  • Level 4: 120 HP over stock – High-performance tune for demanding street driving.
  • Level 5: 150 HP over stock – Maximum power for extreme performance and racing applications.
• RTD4/MPVI4 Device Integration: Powered by HP Tuners' RTD4 or MPVI4 device on their Tune Delivery Network (TDN), this system operates like a secure, cloud-based EZ Lynk platform, offering seamless over-the-air updates and remote tuning delivery for maximum convenience.
• Single Power Level Availability: Currently optimized for single-tune applications, ensuring focused, high-quality performance tuning. SOTF will be available in later releases.
• Enhanced Performance: Enjoy smoother power delivery, sharper throttle response, and improved engine efficiency, making your Duramax more capable and engaging on the road or trail.
• Removed Speed Limiter: Enjoy meeting new friends in traffic enforcement with our removed speed limiters.

Requirements:

• ECM must be unlocked by HP Tuners through their send-in service. Do not attempt to pair a second ECM and drive the vehicle while the original ECM is sent in.
  
• Windows-based computer and a smartphone for tune installation and management.
• 8 HPTuner's Credits
• HP Tuners AMDP RTD4 or MPVI4 device for tune delivery and application.
  
• Do Not Delete vehicle until tuning has been performed

• Download and Setup TDN App:
  • Search "TDN" or "Tune Delivery Network" in App Store/Google Play. Install/update to latest version.
  • Create/sign in to HP Tuners account.
  • Link to AMDP using our invite code: MNFS-4601
  • Go to Tools → RTD+ / MPVI First Time Setup (or similar). Follow prompts: Plug device into OBD-II, enable Bluetooth/Wi-Fi, pair, sync (keep internet connection).
• Initial Read (Stock File):
  • Plug interface (with bypass cable if needed) into OBD-II port.
  • Ignition ON (engine OFF; for push-button, press start without brake).
  • In TDN app: Flash → Read Vehicle.
  • Follow prompts. The app uploads the stock read to the tuner/cloud. 
  • Email sales@amdieselperformance.ca with your AMDP Order number as the subject line. Notify the tuners that your stock read has been uploaded. Most tune files are received back the same business day.
• Receive and Flash Tune:
  • AMDP will send back modified file(s) — you'll get a notification/email. It appears in the app (use Sync Files if needed). You will see a file named "Restore" that is your stock read you can use to recover or flash the truck to stock at any time.
  • Plug interface into OBD-II, ignition ON (engine OFF).
  • Flash tab → Select vehicle/tune file → Long-press and choose Full Write (or Write Entire).
  • Follow prompts: Confirm connections, keep app open, do not disturb.
  • Process takes 5-15+ minutes. Vehicle may beep, lights flash — normal.
  • After success: Turn ignition OFF, wait, then ON again as prompted. Clear DTCs via app 2X.
  • Test drive and monitor.

Here is a video as well: https://www.youtube.com/shorts/MiKLDyEGMJk