Dieselr Commander Tune Files (2020-2023 Duramax L5P)

In stock
Usually ships within 24 hours
Regular price $1,113.75

Overview:

The DIESELR Commander Tune Files for 2020-2023 Duramax L5P engines are expertly crafted to unlock your truck's full potential. These tunes are designed to provide significant gains in power, torque, and efficiency, ensuring your Duramax performs at its best in any driving condition.

Compatibility:

Specifically designed for 2020-2023 Duramax L5P engines. Ensure your vehicle is compatible before purchasing.

Installation:

Unlock the ECM & Flash the tune files directly using the GDP Commander device. No need to send in your ECM.

What's Included:

  • Tune files only

What You Need:

  • GDP Commander
  • 8 Commander Credits (To Flash Tune Files)
  • 4 Commander Credits (To Unlock ECM)
Please Note: If you purchase the GDP Commander device, it comes with 8 credits included.

Levels:

  • Level 1 - 0 HP
  • Level 2 - 50 HP
  • Level 3 - 80 HP
  • Level 4 - 120 HP
  • Level 5 - 180 HP
  • SOTF

Features:

  • Significant improvements in horsepower and torque
  • Enhanced fuel efficiency and throttle response
  • Reliable and safe power delivery, optimized for your vehicle

Unmatched Tech Support:

We pride ourselves on having the biggest tech support team in the industry, ready to assist you at every step.

Same-day shipping.

Get your order fast.

Lowest price, guaranteed.

Find it cheaper, we’ll beat it.

Free returns.

Wrong part? No hassle.

Weekly special offers.

New deals drop every week!

Parts You Can Trust. Performance You Can Feel.

Looking for proven diesel performance parts that actually fit and perform? We stock hand-selected upgrades for Duramax, Cummins, and Powerstroke platforms — no guesswork, no junk.

From tuning and exhaust to suspension, engine internals, and recovery gear, everything we carry is backed by real-world testing and used by builders who know what works. If it’s on our site, it’s here for a reason.

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