If you're tuning a 2024–2025 L5P, this is your starting point. These are the tuning tools that get you access to the ECM — nothing more, nothing less.
If you're tuning a 2024–2025 L5P, this is your starting point. These are the tuning tools that get you access to the ECM — nothing more, nothing less.
The 2024–2025 L5P Tuning Devices Dieselr collection includes only the tools required to tune the new E42-equipped GM Duramax trucks. You’ll find the HP Tuners MPVI3, required tuning credits, and our tested E42 ECM mail-in unlock service — all in one place.
Dieselr doesn’t deal in guesswork or hype. Everything in this lineup has been fitted, flashed, and confirmed in our in-house trucks. These are the same tools used by pro tuners across the country to get safe, stable ECM access on the 2024–2025 platform.
What’s inside:
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HP Tuners MPVI3 interface for data logging and flashing (VCM Suite Beta required)
- HP Tuners tuning credits
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E42 ECM Upgrade Service — required mail-in unlock for tuning access
Whether you’re building around your own tune or pairing this with one of our Dieselr tuning bundles, this is your essential toolkit for 2024–2025 chevrolet silverado, GMC Sierra HD trucks and Duramax L5P tuning.
Straightforward parts. Real support. Dieselr-tested.
That’s how tuning starts — and stays right.
Fits:2001-2025 6.7L Dodge/Ram Cummins6.7L Ford Powerstroke6.6L LB7 GM Duramax6.6L LLY GM Duramax6.6L LBZ GM Duramax6.6L LML GM Duramax6.6L L5P GM Duramax
