5.9L & 6.7L Cummins EFI Live AutoCal V3 Tuner | Ram | 2006–2021
Type: EFI Live Tuner | Fits: Ram Cummins
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The EFI Live AutoCal V3 tuning package provides a custom calibration matched to your Ram Cummins engine, model year and selected pickup or Cab & Chassis configuration.
Vehicle fitment
- 5.9L Cummins: 2006–2007, CMB.
- 6.7L Cummins: 2007.5–2009 CMC; 2010–2012 CMD; 2013–2018 CME; 2019–2021 CMF.
- Choose the exact pickup or Cab & Chassis option shown on this product.
Specifications
| Specification | Details |
|---|---|
| Device | EFI Live AutoCal V3 |
| File delivery | Custom calibration after submission of vehicle details |
| Advertised levels | Stock, +30, +65, +100 and +130 HP; application dependent |
| SOTF | CSP5 switch supplied |
| Bypass cable | Included for the selected applications where required |
What is included
- AutoCal V3 device
- Vehicle-specific JS Speed Diesel tune
- Applicable CSP5 switch
- Required bypass cable for supported newer configurations
Before installation
- Submit VIN and the requested engine, transmission and vehicle details.
- The device ships blank; follow the supplied file-loading instructions when the custom calibration is ready.
- Install the correct calibration before emissions-hardware changes.
For off-road or competition use only where permitted. Follow the supplied installation and tuning instructions.
Frequently asked questions
Is this only for the 6.7L engine?
No. The 2006–2007 selection is for the 5.9L Cummins; later selections cover the stated 6.7L applications.
Does it arrive with a universal preloaded file?
No. The custom file is prepared for the selected vehicle after its details are supplied.
Is the SOTF switch an extra purchase?
The supplier describes the applicable CSP5 switch as included with this tuning package.
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
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.

5.9L & 6.7L Cummins EFI Live AutoCal V3 Tuner | Ram | 2006–2021
Vehicle Fitment
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