Collection: 2019-2026 Duramax LM2 Devices

3.0L Duramax LM2 Tuning Devices

Tuning devices for the 2019–2026 GM 3.0L Duramax LM2. The device flashes a Dieselr-calibrated tune to your truck. Every part is matched to your truck and the rest of your build.

Tuning Devices

Supported devices include EZ Lynk Auto Agent, HP Tuners MPVI4, and others. The device flashes the calibration; pair it with a Dieselr tune for your platform.

Compatibility

Organized by confirmed fitment for the 2019–2026 GM 3.0L Duramax LM2.

FAQ

Which tuning device do I need?
Supported devices include HP Tuners MPVI4, GDP Commander. Each flashes a Dieselr-calibrated tune to your truck.

Do I need a tune with the device?
Yes — the device runs a Dieselr calibration matched to your truck.