ENGINE · 2007-present
Cummins 6.7 tuning
Ram 6.7L Cummins ISB inline-6 diesel. I6 diesel turbo VGT, 6.7 L, 350-420 HP stock. Cars: Dodge Ram 2500 / 3500 6.7 2007.5-2018, Ram HD 2019+.
Engine specs
| Engine code | Cummins 6.7 |
|---|---|
| Configuration | I6 diesel turbo VGT |
| Displacement | 6.7 L |
| Production years | 2007-present |
| Stock power | 350-420 HP |
| ECU family | Cummins CM2350 / Bosch EDC17CP44 → |
Tuning stages on Cummins 6.7
| Stage 1 | +60-100 HP / +200-300 lb-ft (EZ Lynk, Smarty SaintsBox) |
|---|---|
| Stage 2 | +120-180 HP (S464 / S369 turbo + injectors + tune) |
| Stage 3 | +250+ HP (compounds, head studs, ARP) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on Cummins 6.7
Common DTC codes on Cummins 6.7
Brands running Cummins 6.7
Workshop workflow
- Read the Cummins 6.7 ECU via OBD or bench using your existing flasher (KESS3, AutoTuner, MPPS, Trasdata, FRF).
- Open Softechpro V5 and drag the .bin / .ori / .hex / .s19 / .frf onto the workspace. The Cummins CM2350 variant is auto-detected.
- Pick the service tab and apply Stage 1 / 2 / 3 / DPF OFF / EGR OFF / AdBlue OFF as required.
- Save patched .bin — the TPROT + multi-block CRC32 is recomputed automatically.
- Flash via your existing flasher. Adaptation reset via OEM scan tool if required.