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Ram Cummins - OBD2 Emissions-On Tune File (2003-2021)
Off-Road Use Only!

Ram Cummins - OBD2 Emissions-On Tune File (2003-2021)

Type: Tuners | Fits: Ram Cummins

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$240.00
$240.00
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Choose Your Body Type:

Already own an OBD2 tuning device? Maximize yourΒ RAM Cummins engine’s performance with a custom tune file designed specifically for your vehicle. Built to enhance both power and efficiency, this tune keeps emissions systems intact while optimizing engine parameters for towing, throttle response, and fuel economy.

Why Choose This Custom Tune File?

  • More Horsepower & Torque – Stronger towing performance and acceleration.
  • Lower Combustion Temps – Optimized operations reduce engine wear.
  • Improved Throttle Response – Smoother, more immediate power delivery.
  • Reduced DPF Regens – Smart tuning cuts down on frequent regeneration cycles.

Vehicle Compatibility

βœ… 2003–2005 RAM Cummins 2500/3500 5.9L
βœ… 2006–2007 RAM Cummins 2500/3500 5.9L
βœ… 2007.5–2009 RAM Cummins 2500/3500/4500/5500 6.7L
βœ… 2010–2012 RAM Cummins 2500/3500/4500/5500 6.7L
βœ… 2013–2018 RAM Cummins 2500/3500/4500/5500 6.7L
βœ… 2019–2021 RAM Cummins 2500/3500/4500/5500 6.7L
βœ… 2014–2019 RAM EcoDiesel 1500 3.0L (requires Dodge Smart Access Cable)
βœ… 2018+ RAM EcoDiesel 1500 3.0L (requires Smart Access Cable/Unlock Cable)
βœ… 2020–2023 RAM EcoDiesel 1500 3.0L (requires PCM Upgrade + Smart Access Cable)

Body Type Selection

  • Pickup
  • Cab & Chassis

How It Works

  1. Purchase the Tune – Select the option matching your RAM Cummins model and year.
  2. Read Your Vehicle – Use your existing OBD2 device to scan the ECM and generate an info log.
  3. Send Files – Submit the log & read file to our tuning specialist using the contact link provided.
  4. Receive Custom File – Our in-house expert sends your custom tune file tailored to your truck.
  5. Flash the ECM – Upload the tune to your device and flash it to your vehicle.

Specifications

Feature Details
Tune Type Emissions-On (DPF/DEF/EGR remain active)
Compatibility RAM Cummins 5.9L & 6.7L (2003–2021), RAM EcoDiesel 3.0L (2014–2023)
Body Types Pickup, Cab & Chassis
Requirements Existing OBD2 Tuning Device
Support Custom tuning assistance included


SKU:
BB-RAM-CUM-03-21-TUN-03
Availability:
Out of stock
Vendor:
Black Bandit
Category:
Diesel Performance Parts & Upgrades

Important Notes:

  • For off-road use only – not legal for highway or emissions-controlled vehicles.
  • Hardware not included – you must already own an OBD2 tuning device.
  • Check local laws before purchase and installation.
  • Professional installation recommended – advanced mechanical knowledge required.
  • Installing this product may void your vehicle’s warranty.
  • Product is non-refundable once delivered.
  • Actual results may vary.

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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

Shipping

We strive to provide fast and reliable shipping options for all our customers. For detailed information about our shipping rates, delivery times, and policies, please visit our Shipping Page.

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.


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Ram Cummins - OBD2 Emissions-On Tune File (2003-2021)
Ram Cummins - OBD2 Emissions-On Tune File (2003-2021)
$240.00
$240.00