ENGINE · 2003-present
Hemi 5.7 tuning
Chrysler 5.7L Hemi V8. V8 NA pushrod (3rd gen Hemi), 5.7 L, 345-395 HP stock. Cars: Dodge Charger R/T, Challenger R/T, Ram 1500, Jeep Grand Cherokee 5.7, Durango.
Engine specs
| Engine code | Hemi 5.7 |
|---|---|
| Configuration | V8 NA pushrod (3rd gen Hemi) |
| Displacement | 5.7 L |
| Production years | 2003-present |
| Stock power | 345-395 HP |
| ECU family | Chrysler NGC4 / PCM5 → |
Tuning stages on Hemi 5.7
| Stage 1 | +15-25 HP |
|---|---|
| Stage 2 | +30-50 HP (headers + cat delete + intake) |
| Stage 3 | +150+ HP (supercharger — Procharger, Whipple, Magnuson) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on Hemi 5.7
Common DTC codes on Hemi 5.7
Brands running Hemi 5.7
Workshop workflow
- Read the Hemi 5.7 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 Chrysler NGC4 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.