GM Duramax - OBD2 Emissions-On Tune Files (2001-2023)
Type: Tuners | Fits: GM Duramax
File does not include hardware or tuning device. Image is for demonstration purposes only.
Custom OBD2 Tune File for GM Duramax (2001-2023)
Already have an OBD2 tuning device? Maximize your Duramax engine's performance with our custom tune file, tailored for your specific vehicle and engine configuration. Designed to enhance both power and efficiency, this tune keeps emissions systems intact while optimizing engine parameters for better towing, responsiveness, and fuel economy.
Why Choose This Custom Tune File?
Unlock advanced performance without deleting emissions systems. This tune file offers:
- Increased horsepower and torque for enhanced towing performance
- Optimized engine operations to reduce wear and lower combustion temperatures
- Improved throttle response and reduced DPF regeneration cycles
Year Selection:
To ensure seamless tuning, please select the correct year for your GM Duramax:
- 2001-2004 GM DuramaxSilverado/Sierra (LB7)
- 2004.5-2005 GM DuramaxSilverado/Sierra (LLY)
- 2006-2010 GM Duramax Silverado/Sierra (LBZ/LMM)
- 2011-2016 GM Duramax Silverado/Sierra (LML)
- 2017-2023 GM DuramaxSilverado/Sierra (L5P)
- 2020-2022 Silverado/Sierra 1500 3.0 Duramax (LM2)
- 2022-2022.5 Silverado/Sierra 1500 3.0 Duramax (LM2)
- 2019-2023 Silverado/Sierra 6.6 Duramax (L5D)
Year Specific Key Considerations:
The 2017-2023 GM DuramaxSilverado/Sierra (L5P) and 2019-2023 Silverado/Sierra 6.6 Duramax (L5D) prices on TunerDepot.com do come with the ECM E41 Upgrade & Unlock Kit.
The2020-2022 Silverado/Sierra 1500 3.0 Duramax (LM2) price on TunerDepot.com does come with the GM E46 ECM Upgrade Service.
The 2022-2022.5 Silverado/Sierra 1500 3.0 Duramax (LM2) price on TunerDepot.com does not come with the required L5P E66 ECM Service.
The2022-2022.5 Silverado/Sierra 1500 3.0 Duramax (LM2) requires you to physically send in your ECM using this service here. The price of this product on TunerDepot.com does not cover this required service.
How It Works:
- Purchase the emissions-on tune: Select the tune associated with your vehicle's specifications.
- Read your vehicle: Use the OBD2 device you already have to read your vehicle’s control module and generate an info log.
- Send us the log & read file: The info logand read file are sent to our tuning specialist, who creates your custom tune file. Connect to our tuning specialist using this contact form here.
- Receive your tune file: Our in-house expert tuner sends you the completed tune file for your vehicle.
- Write the tune to your vehicle: Upload the tune file to your device and flash it to your vehicle.
Important Notes:
- This product is for off-road use only
- This product does not include any hardware or devices.
Upgrade your GM Duramax with a custom tune file built for performance. Our expert team ensures that every file meets your vehicle's exact needs for optimal results.
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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.
