GM Duramax LM2 3.0L Delete Tune Software Package (2020-2022)
GM Duramax LM2 3.0L Delete Tune Software Package (2020-2022)

GM Duramax LM2 3.0L Delete Tune (2020-2022)

Regular price $999.99
Sale price $999.99 Regular price
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Tune Type
SKU:
BB-GM-LM2-20-22-DEL-SO
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Take your driving experience to the next level with the Delete Tune File for the 2020-2022 GMC Sierra and Chevrolet Silverado LM2 3.0L Duramax Engines. This tuning solution is a must-have for diesel enthusiasts who demand more from their vehicles.

Note: This product requires an HP Unlocked ECM and an OBD2 Device. These items are not included and must be purchased separately.

Why Choose the Delete Tune File?

The Delete Tune File delivers numerous benefits:

  • Enhanced Performance: Expect a noticeable increase in horsepower, torque, and throttle response, giving your truck superior power and acceleration across all RPM ranges.
  • Improved Fuel Efficiency: Optimize fuel delivery and combustion for more miles per gallon without sacrificing performance.
  • Emissions Optimization: Streamline exhaust flow by removing restrictive components, reducing backpressure, and improving engine longevity.
  • Custom Tailored Tunes: Unlike most other LM2 tunes that are based on a single pre-made file, our tunes are manually created using your specific stock file.  This ensures all software segments are unchanged so you won't have any issues such as fan issues, cruise control issues, error codes or dash messages.  We have not found anyone else offering this service.

Install Instructions

This product requires the following items:

The OBD2 read and write instructions can be found by clicking this link here

Note: This product requires an HP Unlocked ECM and OBD2 Device. These items are not included and must be purchased separately.


Product Features:

  • Compatible with 2020-2022* GMC Sierra and Chevrolet Silverado LM2 3.0L Duramax. Will not work on late 2022 models with fully digital instrument cluster. 
  • The product works with the E46 ECM but is incompatible with E66 ECM found in some late 2022 models. This tune will not work on late 2022 models with fully digital instrument cluster, or on facelift trucks (Global B) trucks.
  • Custom Tuning: Tailored to your specific LM2 truck.
  • Fuel Optimization: Increased fuel economy due to optimal commanded fuel quantity, injection events, timing, and trans calibration.
  • Durability: Designed to promote engine longevity by reducing backpressure and minimizing risks associated with clogged exhaust systems.
  • Increased Torque: All tune levels add torque which allows earlier shifts when applicable for improved fuel economy.
  • Safe: All safe non-aggressive OEM detune/back down strategies are left intact or calibrated for the higher power levels that prevent premature failures.  All limiters that are safe to be removed are removed.

Tune Types:

  • Stock Optimized (+0HP): Does not add peak power but frees up power that was limited by the emissions systems.
  • Heavy Tow (+12HP): Great for towing heavy loads.
  • Light Tow (+24HP): Great for towing light loads.
  • Sport (+36HP): Adds noticeable power without too much stress.
  • Performance (+48HP): Adds significant power without too much stress.
  • Race (+60HP): Maximize the available fuel and air flow available with the factory turbocharger and fuel system.
  • All Tune Levels: Get all 6 tune levels above - not SOTF.

Important Details:

  • The Delete Tune File requires an Unlocked ECM and HP Device, sold separately (find the full kit including all necessary items here).
  • Recommended for off-road use only; ensure compliance with local regulations before purchase.
  • All sales are final; please review your selection carefully before completing your order.
  • *This is not compatible with late 2022 models with the fully digital instrument cluster

Order Now and Experience the Difference:

Transform your GMC Sierra or Chevrolet Silverado with the Delete Tune File. Unlock untapped power, achieve greater efficiency, and enjoy a driving experience like no other. Contact us today for more details or assistance with your purchase!

Please Note: The vehicle must be tuned prior to deleting the emissions systems.

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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.


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GM Duramax LM2 3.0L Delete Tune (2020-2022)
Regular price $999.99
Sale price $999.99 Regular price