Collection: 2019-2023 Duramax 3.0L LM2

Enhance Your 2019–2023 Duramax 3.0L LM2 Performance

Unlock the full potential of your 2019–2023 Duramax 3.0L LM2 with DIESELR's premium tuning kits and performance parts. Whether you're aiming for improved towing capacity, better fuel efficiency, or enhanced throttle response, our products are designed to deliver.

🔧 Top Products for Duramax 3.0L LM2

• ✅ EZ Lynk AutoAgent 3
  Experience seamless cloud-based tuning with real-time diagnostics and remote tune delivery.
• ✅ DIESELR All-In-One Tuning Kits
  Comprehensive solutions including custom tuning files, EGR upgrades, and high-flow exhaust systems tailored for your LM2 engine.
• ✅ Performance Exhaust Systems
  Upgrade to our T409 stainless steel exhaust systems for improved airflow and reduced EGTs.
• ✅ EGR Upgrade Kits
  Optimize your engine's performance with our model-specific EGR upgrade kits designed to lower EGTs and enhance airflow.

🚛 Vehicle Fitment

• 2019–2023 Chevrolet Silverado 1500 3.0L Duramax LM2
• 2019–2023 GMC Sierra 1500 3.0L Duramax LM2

💡 Why Choose DIESELR for Your LM2 Upgrades?

• Custom Calibration: Files built specifically for your truck’s year and drivetrain.
• Remote Flashing: No need for bench unlocks or ECM removal.
• Expandable Options: Add switches, brackets, and support packs as needed.
• Off-Road Ready: Designed for closed-course and competition use only.