GM / Chevy Duramax 3.0L LM2 | Full DPF/DEF/EGR Delete Kit | 2020-2022

Description

2020-2022 GM / Chevy Duramax 3.0L LM2 Delete Kit

The 2020, 2021, 2022 LM2 delete kit is designed to enhance the performance of your GM/Chevy Duramax 3.0L LM2 by eliminating restrictive emissions systems. This all-in-one bundle removes the DPF, DEF, and EGR systems, allowing for improved exhaust flow and engine efficiency. By removing these components, the kit helps reduce soot recirculation and simplifies the emissions control path, offering a significant upgrade for off-road use.

What’s Included

• ECU Unlock Tool – Provides the necessary tools to unlock your ECM for tuning with the 3.0 LM2 delete kit, ensuring compatibility with the 3.0L LM2 engine.
  • Tune Files – Custom tune files are prepared for your specific setup, allowing for optimized performance and power gains.
  • ECM Unlock Service – The factory E46 ECM must be removed from the truck and shipped to the tuning facility for the required upgrade and unlock. The service does not support E66 ECM-equipped models. 
• EGR Delete Kit – Includes EGR block-off plates and cooler delete components to eliminate the EGR system, reducing soot buildup.
• 3-Inch Turbo-Back Exhaust – Replaces the restrictive factory aftertreatment-side exhaust path and is sized specifically for the 3.0L LM2 platform. 
• DEF/SCR Delete Components – Removes the DEF system, simplifying the emissions system and reducing maintenance needs. Includes necessary parts and cables.

Vehicle Compatibility

Ensure your vehicle’s year, engine, model, and body style match before ordering.

How It Works?

The 2020-2022 LM2 Duramax delete kit works by removing the Diesel Particulate Filter, Diesel Exhaust Fluid system, and Exhaust Gas Recirculation components from your truck. This process reduces exhaust back pressure and soot recirculation, allowing your engine to breathe easier and perform better. The included ECU Unlock Tool provides a seamless tuning process, enhancing power and efficiency. It engages directly with factory components to ensure compatibility.

Kit Specifications & Features

The LM2 3.0 Duramax delete kit stands out with its comprehensive removal of emissions systems, offering a significant performance boost. The kit is designed for easy installation and includes everything needed for a full emissions delete. With the ECU Unlock Tool, you can unlock your vehicle’s potential and experience improved power and efficiency. The inclusion of valve components enhances system efficiency.

Available Tune Levels & Expected Gains

ECU Unlock Tool – This HP Tuners MPVI workflow tool uses a stock file and infolog method for tuning.

The LM2 calibrations are not SOTF tunes. Stock Optimized and Tow are separate calibration options.

Key Benefits

• Increased Power – May improve horsepower by optimizing exhaust flow.
• Improved Efficiency – Can reduce fuel consumption by up to 10% with a full delete and tune.
• Reduced Maintenance – Eliminates the need for DEF refills and DPF regenerations.
• Enhanced Sound – Offers a deeper exhaust note with optional exhaust upgrades.
• Custom Tuning – Provides tailored tuning solutions for specific performance needs.

Installation Information

Installation of the 2020-2022 3.0 Duramax LM2 delete kit typically takes 3-5 hours and requires basic mechanical skills. It is recommended to use a professional diesel/performance shop if you are inexperienced. The kit includes a detailed installation guide, and the following tools are recommended:

• Guide Included – Comprehensive instructions provided.
• Estimated Time – Typically 3-5 hours.
• Recommended Tools – Basic tools, jack stands, and anti-seize. Device setup and cables needed for tuning.
• Tuning Requirements – Laptop with Windows 10+ and stable internet connection.
• Common Difficulties – Tight access areas may require special tools.
• Professional Install Recommendation – For those without mechanical experience.

Hardware installation commonly requires several hours depending on experience and equipment. ECM unlock is a separate mail-in service, and tune preparation begins after the unlocked ECM, MPVI serial number, stock file, and infolog are available. 

Common Emissions Fault Codes Removed

Installing and tuning this kit will remove common emissions-related fault codes, ensuring a clean dashboard. Here are some of the codes removed:

• P0401 – EGR Flow Insufficient.
• P2459 – DPF Regeneration Frequency.
• P20EE – SCR NOx Catalyst Efficiency Below Threshold.