DIESELR GM Duramax L5P All In One Kit (2017-2023) w/ Commander

DIESELR GM Duramax L5P All In One Kit (2017-2023) w/ Commander

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$2,786.98
$2,786.98
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The DIESELR GM Duramax L5P All-In-One Kit (2017–2023) w/ Commander is the complete tuning and exhaust package built for serious Duramax owners. This kit combines the proven power of DIESELR custom Commander tune files with your choice of exhaust and EGR upgrades, giving your 6.6L Duramax the performance and drivability it should have had from the factory.

The included DIESELR Commander tuner comes preloaded with 8 credits, giving you the ability to flash single-level tunes or full Shift-On-The-Fly (SOTF) calibrations depending on your needs. Year-specific tuning ensures the best results for both 2017–2019 L5P and 2020–2023 L5P trucks.

Kit Components (based on year range):

  • DIESELR Commander Tune Files (2017–2019 or 2020–2023 L5P)
  • DIESELR EGR Upgrade Kit (2017–2019 or 2020–2025 L5P)
  • DIESELR Cat & DPF Race Pipe (2017–2025 L5P)
  • DIESELR Downpipe-Back Exhaust (4″ or 5″, year-specific)
  • CAN Plug (2017–2019 or 2020–2023 L5P)

Key Features

  • Commander platform with 8 credits included
  • Year-specific tuning files for 2017–2019 & 2020–2023 L5P
  • Options for Single Tune or SOTF multi-level control
  • Exhaust choices: Cat & DPF Race Pipe, 4″ or 5″ downpipe-back
  • Matched EGR upgrade kit included for complete reliability
  • Custom calibrations for towing, daily driving, or max performance

From throttle response to pulling power, this Commander-based all-in-one kit is built to deliver safe, reliable horsepower gains while keeping your truck in the optimal operating range. Every file is tested on real trucks, backed by Dieselr’s unmatched tech support.

DIESELR GM Duramax L5P All In One Kit (2017-2023) w/ Commander

$2,786.98

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Does it come with a warranty?

Yes, most products we sell are backed by the manufacture's warranty. Warranty coverage varies by brand, so check the product listing or contact us if you have any questions before purchasing.

What happens if I don't like it?

If you're not completely satisfied, we're here to help. Eligible unused items may be returned within 30 days of delivery, subject to our return policy and applicable restocking fees.

How fast is shipping?

We process most orders within 1-2 business days. Shipping times vary by product availability and location, but most customers receive their orders within 3-7 business days after they ship.

What's the returns policy?

Returns must be requested within 30 days of purchase, Items must be new, unused, and in their original packaging. Approved returns are subject to a 30% restocking fee. Custom order, electrical, and special order items may not be eligible for return.

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