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

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.