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Commander Tune Bundle (2017-2019 L5P Duramax)

Commander Tune Bundle (2017-2019 L5P Duramax)


DIESELR Commander Tune Files (2017-2019 Duramax L5P) (Tune Type)
DIESELR Downpipe Back Exhaust - Single (2017-2019 GM 2500/3500 6.6L Duramax L5P) (Size)

Regular price $4,480.99
Sale price $4,480.99 Regular price

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The Commander Tune Bundle (2017-2019 L5P Duramax) is built for truck owners who demand real power, control, and drivability. This all-in-one tuning package provides everything needed to unlock, tune, and optimize both the ECM and TCM for the ultimate performance upgrade. Whether you're after better throttle response, smoother shifts, or serious horsepower gains, this bundle delivers.

At the core of this package is The GDP Commander, a powerful tool that handles both ECM and TCM unlocking and flashing, eliminating unnecessary steps and making tuning effortless. With custom DIESELR tune files and expert tuning support, you'll have full control over your 2017-2019 L5P Duramax. Plus, with Shift-On-The-Fly (SOTF) adjustments via the steering wheel, you can instantly switch power levels to match any driving condition.

What’s Included:

The GDP CommanderUnlock and flash both ECM and TCM with a single device.20 Universal CreditsRequired for ECM and TCM unlocking.Custom DIESELR Tune FilesFive performance levels built for real-world use:

  • Level 1: Stock Power

  • Level 2: 50+ HP

  • Level 3: 80+ HP

  • Level 4: 120+ HP

  • Level 5: 180+ HP ✔ Transmission (TCM) TuningRefines shift quality, torque management, and performance.T87A TCM HarnessEnsures proper connection and communication with the TCM.SOTF (Shift-On-The-Fly) Through the Steering WheelChange power levels instantly while driving.EGR Upgrade KitReduces restrictions and improves engine reliability.5" Exhaust + DownpipeEnhances exhaust flow for better efficiency and lower EGTs.CAN Bus PlugsPrevents system errors by replacing unplugged components.Custom Tuning SupportExpert remote assistance throughout the tuning process.

How It Works:

  1. Plug in The GDP CommanderUnlock and flash your ECM and TCM in one step.

  2. Select Your Power LevelDaily driving, towing, or max output—adjust as needed.

  3. Flash and DriveExperience improved power, shifting, and efficiency instantly.

Why Choose the Commander Tune Bundle (2017-2019 L5P Duramax)?

Complete Tuning PackageIncludes tuning, exhaust, and ECM/TCM unlocking.No GuessworkEverything needed for full tuning in one kit.SOTF AdjustmentsSwitch power levels in real-time using the steering wheel controls.Stronger, Smoother ShiftingTCM tuning keeps up with added horsepower.Trusted Performance GainsBacked by expert tuning support.

Take Full Control of Your L5P Duramax

Factory tuning limits your truck’s capabilities. The Commander Tune Bundle (2017-2019 L5P Duramax) gives you real power, better efficiency, and complete tuning control—all in one package.


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Commander Tune Bundle (2017-2019 L5P Duramax)

$4,480.99

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