Ram Cummins - OBD2 Flash Emissions-On Tuning Kit (2003-2021)
Type: Tuner | Fits: Ram Cummins

Unlock the full potential of your Dodge Ram Cummins with theΒ OBD2 Flash Emissions-On Tuning Kit. This professional-grade tuning solution enhances performance, increases towing capacity, and improves efficiencyβall while keeping factory emissions systems intact. Perfect for drivers who want more power without removing emissions components.
Why Choose This Tuner?
- More Power & Torque β Optimized tuning delivers stronger towing performance.
- Cooler Running Temps β Adjusted engine parameters reduce stress on critical components.
- Reduced DPF Regens β Smart calibrations cut down on frequent regeneration cycles.
- Full Control β Advanced tuning while keeping emissions systems functional.
Vehicle Compatibility
- 2003β2005 Ram Cummins 2500/3500 5.9L
- 2006β2007 Ram Cummins 2500/3500 5.9L
- 2007.5β2009 Ram Cummins 2500/3500/4500/5500 6.7L
- 2010β2012 Ram Cummins 2500/3500/4500/5500 6.7L
- 2013β2018 Ram Cummins 2500/3500/4500/5500 6.7L
- 2019β2021 Ram Cummins 2500/3500/4500/5500 6.7L
- 2014β2019 Ram EcoDiesel 1500 3.0L (includes Dodge Smart Access Cable)
- 2018+ Ram EcoDiesel 1500 3.0L (includes Dodge Smart Access Cable)
- 2020β2023 Ram EcoDiesel 1500 3.0L (requires PCM Upgrade + Smart Access Cable)
Body Type Selection
- Pickup
- Cab & Chassis
Whatβs Inside the Package
- OBD2 Flash Tuning Device
- Pre-loaded tuning credits (matched to your vehicle)
- Comprehensive software suite for scanning, diagnostics, logging & calibration
- Programming and USB cables for easy setup
- Dodge Smart Access Cable (included for 2018+ models)
Specifications
Feature | Details |
---|---|
Tune Type | Emissions-On (keeps DPF/DEF/EGR systems active) |
Device | OBD2 Flash Tuning Interface |
Credits | Pre-loaded, vehicle-specific |
Data Logging | Real-time, standalone |
Storage | Expanded capacity for logs & tune files |
Compatibility | Dodge Ram Cummins & EcoDiesel (2003β2023) |
How It Works
- Purchase β Select the correct year and body type for your Ram.
- Receive Device β Pre-loaded with tuning credits.
- Read Vehicle β Use the device to scan your ECM and generate an info log.
- Send Files β Submit the log & read file to our tuning specialist.
- Receive Tune β Our in-house tuner provides your custom ECM file.
- Flash ECM β Upload the file to your OBD2 device and flash it to your vehicle.
Detailed step-by-step read & write instructions are available here.
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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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
- OffβRoad Use Only
Products sold by JS Speed are intended for offβroad use and may be illegal on public roads where emissions or pollutionβcontrol 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 vehicleβs 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.

















