The Duramax LM2 all-in-one tuning EZ Lynk kit from Dieselr is a complete, platform-matched solution for owners who want a controlled, predictable setup on the 3.0L GM Duramax LM2 platform. This kit removes configuration guesswork by combining Dieselr-validated tuning with the correct supporting hardware—assembled to work together under real operating conditions.

This package is built around Dieselr EZ Lynk E46 tune files, delivered through the EZ Lynk AutoAgent 3. The tuning is platform-specific for 2019–2022 GM 1500 trucks equipped with the 3.0L Duramax LM2, focusing on refined drivability, managed torque delivery, and long-term reliability.

The kit allows you to configure supporting hardware based on your build, including Dieselr Cat & DPF race pipe options and the Dieselr EGR upgrade kit, ensuring the calibration and physical components remain aligned.

This is not a generic bundle. It is a Dieselr-built system intended for customers who already understand the platform and want a solution that works the way it should.

UPDATE!!

E46 ECM Unlock — No Send-In Required

The factory E46 ECM found in 2019–2022 LM2 Duramax trucks can be unlocked and flashed directly through EZ Lynk using Dieselr-developed tuning files.

What this means:

ECM unlock and tuning completed on-vehicle
No removal or shipping of the ECM
All flashing handled through the EZ Lynk AutoAgent 3 device
Files delivered and managed through the EZ Lynk mobile app

This is the cleanest way to tune an LM2 platform.

What’s Included

DIESELR EZ Lynk E46 Tune Files
Platform-specific calibration for 2019–2022 GM 3.0L Duramax LM2
EZ Lynk AutoAgent 3 (Blank)
Cloud-based delivery, diagnostics, and support access
Exhaust Configuration (Selectable)
- Dieselr Aluminized 3" Cat & DPF Race Pipes | 3.0L GM Duramax LM2 (2019–2024)
- Dieselr Stainless Steel 3" Cat & DPF Race Pipe | 3.0L GM Duramax (2019–2025)
DIESELR EGR Upgrade Kit
Designed for 2019–2025 3.0L Duramax LM2 applications
"CAN" Plug / USA Made (2019-2022 3.0L Duramax LM2)

Platform & Technical Clarity

Vehicle Platform: GM 1500
Engine: 3.0L Duramax LM2
Model Years: 2019–2022
Tuning Platform: EZ Lynk
ECM Type: E46
Delivery Method: Cloud-based via EZ Lynk
Support: Dieselr-managed

the requirements and regional compliance responsibilities remain the customer’s responsibility. Dieselr does not provide legal advice.

Why This Kit Exists

This kit exists to eliminate uncertainty.

Every component in this Duramax LM2 all-in-one tuning kit is selected to match the calibration strategy, not fight it. The result is a system that behaves predictably, supports long-term use, and avoids the common failure points created by mismatched parts.

If you already know what you want your LM2 to do, this is the configuration that lets you move forward without second-guessing.

Intended Use & Compliance

Some components in this kit may be intended for off-road or competition use only. Customers are responsible for compliance with local regulations. Dieselr makes no legal claims regarding emissions or road legality.

2019-2026 3.0L Duramax LM2 All In One Kits

DIESELR 3.0L GM Duramax LM2 E46 All In One Kit w/ Commander (2020-2022)

DIESELR 3.0L GM Duramax LM2 E66 All In One Kit (2022.5-2026)

DIESELR 3.0L GM Duramax LM2 E46 All in one kit w/ EZ Lynk (2019-2022)