ENGINE · 2001-present
K20 tuning
K20 — Honda 2.0 i-VTEC. I4 NA i-VTEC (Type R K20A/K20Z), 2.0 L, 197-310 HP (Civic Type R FK8 turbo) stock. Cars: Honda Civic Type R, Integra Type R, Acura RSX, Civic Si.
Engine specs
| Engine code | K20 |
|---|---|
| Configuration | I4 NA i-VTEC (Type R K20A/K20Z) |
| Displacement | 2.0 L |
| Production years | 2001-present |
| Stock power | 197-310 HP (Civic Type R FK8 turbo) |
| ECU family | Keihin / Bosch ME17.9 (turbo Type R) → |
Tuning stages on K20
| Stage 1 | +10-20 HP NA / +40-60 HP turbo |
|---|---|
| Stage 2 | +30-50 HP NA (cams + headers) / +80-120 HP turbo (downpipe + intake) |
| Stage 3 | +100+ HP NA (forced induction conversion) / +150+ HP turbo |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on K20
Common DTC codes on K20
Brands running K20
Workshop workflow
- Read the K20 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 Keihin 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 outer CRC is recomputed automatically.
- Flash via your existing flasher. Adaptation reset via OEM scan tool if required.