GM Duramax LWN 2.8L - Transmission Tune (2016-2022)
Type: Tuners | Fits: GM Duramax
Unlock the full potential of your vehicle with a Transmission Control Module (TCM) Tune. This upgrade recalibrates your transmission to handle added power from performance modifications while improving drivability, reliability, and overall efficiency.
Key Benefits
- Optimized Shifts: Adjusts shift speeds and timing for smoother, more responsive performance.
- Torque Converter Lockup: Improves torque transfer for better towing and acceleration.
- Increased Line Pressure: Strengthens transmission response to manage added horsepower.
- Enhanced Torque Management: Provides stability and control when running higher power tunes.
What You Need to Use This TCM Tune
- OBD2 Flash Delete Tuning Interface (GM Duramax compatible)
- 2x GM Duramax Tuning Credits
Package Includes
- Custom TCM calibration file with optimized transmission settings
- Adjustments for shift points, lockup strategy, and pressure control
- Designed for off-road enthusiasts seeking maximum performance and reliability
Specifications
| Requirement | Details |
|---|---|
| Hardware Needed | GM Duramax – OBD2 Flash Delete Interface |
| Credits Required | 2x GM Duramax Tuning Credits |
| Supported Adjustments | Shift Speeds, Shift Timing, Line Pressure, Torque Converter Lockup |
| Recommended Use | Off-road / performance applications |
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.
