MPVI3 Tune Bundle (2020-2023 L5P Duramax)

The MPVI3 Tune Bundle (2020-2023 L5P Duramax) is the foundation for unlocking serious performance, efficiency, and control. Whether you’re getting started with tuning or upgrading your current setup, this all-in-one package provides the hardware, custom tuning, and expert support needed to push your Duramax beyond factory limits.

This bundle includes custom DIESELR tune files, ECM and TCM unlocking, transmission tuning, and essential upgrades. With Shift-On-The-Fly (SOTF) adjustments via the steering wheel, you can instantly adjust power levels to fit any driving condition.

What’s Included:

✔ MPVI3 – Versatile tuning interface for reading, editing, and flashing ECM. ✔ Custom DIESELR Tune Files – Five power levels built for real-world performance:

• Level 1: Stock Power

• Level 2: 50+ HP

• Level 3: 80+ HP

• Level 4: 120+ HP

• Level 5: 180+ HP ✔ SOTF (Shift-On-The-Fly) Through Steering Wheel – Switch power levels on demand. ✔ 12 Universal Credits – Required to unlock and flash the ECM. ✔ Unlocked TCM – Pre-unlocked Transmission Control Module (TCM) for seamless tuning. ✔ Transmission (TCM) Tuning – Refines shift quality, torque management, and overall drivability. ✔ E41 Upgrade Kit – Necessary for unlocking the ECM. ✔ Exhaust + Downpipe – Optimized for increased airflow and lower EGTs. ✔ EGR Upgrade Kit – Reduces restrictions and improves engine longevity. ✔ CAN Bus Plug – Prevents system errors by replacing unplugged components. ✔ Custom Tuning Support – Expert assistance throughout the tuning process.

How It Works:

1. Plug in the MPVI3 – Unlock and flash your ECM/TCM effortlessly.

2. Select Your Power Level – Daily driving, towing, or max output—adjust as needed.

3. Flash and Drive – Experience improved power, shifting, and efficiency instantly.

Why Choose the MPVI3 Tune Bundle (2020-2023 L5P Duramax)?

✔ Complete Tuning Package – Includes tuning, exhaust, and ECM/TCM unlocking. ✔ No Guesswork – Everything needed for full tuning in one kit. ✔ SOTF Adjustments – Switch power levels in real-time using the steering wheel controls. ✔ Stronger, Smoother Shifting – TCM tuning keeps up with added horsepower. ✔ Trusted Performance Gains – Backed by expert tuning support.

Take Full Control of Your L5P Duramax

Factory tuning limits your truck’s potential. The MPVI3 Tune Bundle (2020-2023 L5P Duramax) gives you real power, better efficiency, and complete tuning control—all in one package.