GM Duramax LM2 – ECM E46 Upgrade & Unlock Service (2020-2022)
Type: Tuners | Fits: GM Duramax
For off-road use only
Image is for demonstration purposes only. Actual device may vary in color and branding
Send-In ECM Upgrade & Unlock Service
E46 ECM tuning for Duramax LM2 trucks offers a convenient service to unlock and upgrade your ECM. This process, designed for 2020-2022 Chevy Silverado and GMC Sierra 1500 3.0L Duramax (LM2) models with the E46 ECM, not compatible with E66 ECMs found int he late 2022 models and newer. The streamlined service ensures minimal downtime, making the upgrade fast and efficient.
Service Highlights
- Hassle-Free Upgrade: Simply send in your ECM to our facility. We handle the unlocking and upgrading process and then ship it back to you, ready for installation.
- Quick Turnaround: Our streamlined process ensures your ECM is upgraded and back in your hands quickly, minimizing downtime for your vehicle.
- No Physical Modification Needed: Avoid the risks associated with ECM removal, such as breaking tabs or potential damage during transit.
- Advanced Diagnostics and Tuning: Once upgraded, your ECM will support advanced diagnostics and tuning capabilities. Enjoy the ability to read, write, and perform special functions using our specialized computer software with an OBD2 Flash Delete Tuning Interface.
- Industry-Leading Write Times: Experience quick write times to get your vehicle back on the road faster.
Upgrade E46 ECM tuning for Duramax LM2 from the Comfort of Your Home
With our Send-In ECM Upgrade & Unlock Service, both DIY enthusiasts and professional tuners have the perfect solution to enhance their truck's ECM without stepping into a shop. This service includes everything from the upgrade to the comprehensive diagnostics package, offering:
- No IMMO relearn required
- No crank relearn necessary
- No need to perform the “Replace ECM” function
What You Need to Do:
- Send your ECM using the shipping guidelines provided.
- Once received, our team will perform the upgrade using state-of-the-art equipment and software.
- We'll ship your upgraded ECM back to you, ready for easy reinstallation.
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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.
