ENGINE · 2017-present
G6DH / Lambda II 3.3T tuning
Lambda II 3.3T — Hyundai/Kia 3.3 V6 twin-turbo. V6 twin-turbo direct injection, 3.3 L, 365-380 HP stock. Cars: Kia Stinger GT, Genesis G70 3.3T, Genesis G80 3.3T, Kia K9 (Quoris).
Engine specs
| Engine code | G6DH / Lambda II 3.3T |
|---|---|
| Configuration | V6 twin-turbo direct injection |
| Displacement | 3.3 L |
| Production years | 2017-present |
| Stock power | 365-380 HP |
| ECU family | Continental SIM2K-260 → |
Tuning stages on G6DH / Lambda II 3.3T
| Stage 1 | +50-80 HP |
|---|---|
| Stage 2 | +100-130 HP |
| Stage 3 | +150+ HP |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on G6DH / Lambda II 3.3T
Common DTC codes on G6DH / Lambda II 3.3T
Brands running G6DH / Lambda II 3.3T
Workshop workflow
- Read the G6DH / Lambda II 3.3T 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 Continental SIM2K-260 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.