GM Duramax LM2 3.0L Delete Tune (2020-2022)
Type: Tuners | Fits: GM Duramax
Take your truck’s performance to the next level with the Delete Tune File for the 2020-2022 GMC Sierra and Chevrolet Silverado LM2 3.0L Duramax. Engineered for diesel enthusiasts, this tuning solution enhances power, efficiency, and drivability.
Vehicle Compatibility
- 2020 GMC Sierra 1500 LM2 3.0L Duramax
- 2021 GMC Sierra 1500 LM2 3.0L Duramax
- 2022 GMC Sierra 1500 LM2 3.0L Duramax (except late models with digital instrument cluster)
- 2020-2022 Chevrolet Silverado 1500 LM2 3.0L Duramax (same restrictions apply)
Why Choose the Delete Tune File?
- Enhanced Performance: Gain noticeable horsepower, torque, and improved throttle response.
- Better Fuel Efficiency: Optimized fuel delivery maximizes MPG while maintaining strong performance.
- Exhaust Flow Optimization: Removes restrictions, reducing backpressure and improving engine reliability.
Requirements for Installation
This product requires the following items (sold separately):
- Unlocked ECM (E46 only) – Not compatible with E66 ECM found in some late 2022 models
- OBD2 Device
- Laptop with Windows 10 or newer
- HP Tuners VCM Suite Beta (latest version) – Downloadable software
- 6 Tuning Credits
- Internet Connection
Find the OBD2 read and write instructions here
Tune Options
| Tune Type | Power Gain |
|---|---|
| Tow Tune | +30 HP |
| Street Tune | +60 HP |
Product Features
- Custom calibration tailored to 2020-2022 LM2 Duramax engines
- Optimizes power, torque, and fuel economy
- Reduces exhaust system restrictions for better longevity
- Designed to work seamlessly with HP Tuners MPVI and VCM Suite
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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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.
