GM Duramax LM2 All-In-One DPF/DEF/EGR Delete Kit (2019-2022)
Type: All-In-One Kit | Fits: GM Duramax

Upgrade your 2019–2022 3.0L GM Duramax LM2 1500 with this All-in-One Delete Kit. Designed to unlock hidden power and efficiency, this package combines tuning, exhaust, and hardware components into a single, seamless off-road performance upgrade.
Vehicle Fitment
- 2019–2022 Chevrolet Silverado 1500 3.0L LM2 Duramax
- 2019–2022 GMC Sierra 1500 3.0L LM2 Duramax
- Not compatible with late 2022 models equipped with the E66 ECM or fully digital instrument cluster
Specifications
Feature | Details |
---|---|
Engine | 3.0L Duramax LM2 |
Model Years | 2019–2022 |
Tuning Options | Tow (+30HP) or Street (+60HP) |
ECM | E46 Upgrade & Unlock Required |
Exhaust | Cat & DPF Delete Pipe |
Interface | OBD2 Flash Delete Tuning |
Credits | 6 Tuning Credits Included |
What’s Included
- OBD2 Flash Delete Tuning Interface
- 6 tuning credits
- GM Duramax LM2 ECM E46 Upgrade & Unlock Service (2020–2022)
- Tow Tune (+30HP) or Street Tune (+60HP)
- Complete EGR Delete Kit
- Cat & DPF Delete Pipe
- GM Duramax LM2 CAN BUS Plug Kit (2020–2022)
- Installation instructions
This product requires the following items:
- Laptop with Windows +10 OS
- HP Tuners VCM Suite Beta (latest version required), which you can download here.
- Internet Connection
Find OBD2 read and write instructions here.
Key Features
- Free-flowing exhaust system improves power and efficiency
- Optimized combustion chamber temperatures for better reliability
- Enhanced longevity of cooling and exhaust systems
- More powerful tune flashes tailored to your LM2
Benefits
- Increased horsepower and torque for towing or street use
- Improved throttle response and fuel economy
- Extended engine life by eliminating restrictive emissions components
- Customizable upgrade path to match your driving needs
Power Levels
Tune Type | Power Gain |
---|---|
Tow Tune | +30HP |
Street Tune | +60HP |
Installation & ECM Removal
This product requires an ECM Unlock Service. Steps before sending in your ECM:
- Clear dashboard warnings or maintenance alerts.
- Resolve DEF/DPF countdown issues.
- Turn off ignition and disconnect battery’s negative cable.
- Safely remove ECM.
A UPS return label will be provided after purchase for the ECM unlock process.
Important Notes:
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TARIFF NOTICE:
While we ship with all required USMCA/CUSMA paperwork, U.S. Customs or carriers may still apply duties or fees at delivery. For details, see U.S. Customs & Border Protection
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We strive to provide fast and reliable shipping options for all our customers. For detailed information about our shipping rates, delivery times, and policies, please visit our Shipping Page.
Return Policies
Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.






