ENGINE · 2015-present
K20C1 tuning
K20C1 — Honda 2.0 turbo (Civic Type R FK8 / FL5). I4 turbo direct injection i-VTEC, 2.0 L, 306-320 HP (FL5 320) stock. Cars: Honda Civic Type R FK8 (2017-2021), Civic Type R FL5 (2022+), Accord 2.0T (K20C4 derivative).
Engine specs
| Engine code | K20C1 |
|---|---|
| Configuration | I4 turbo direct injection i-VTEC |
| Displacement | 2.0 L |
| Production years | 2015-present |
| Stock power | 306-320 HP (FL5 320) |
| ECU family | Keihin / Bosch ME17.9 + Hondata FlashPro / KTuner → |
Tuning stages on K20C1
| Stage 1 | +40-60 HP (Hondata, KTuner) |
|---|---|
| Stage 2 | +80-120 HP (downpipe + intake + intercooler + E85) |
| Stage 3 | +150+ HP (turbo upgrade, fuel system) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on K20C1
Common DTC codes on K20C1
Brands running K20C1
Workshop workflow
- Read the K20C1 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 TPROT + multi-block CRC32 is recomputed automatically.
- Flash via your existing flasher. Adaptation reset via OEM scan tool if required.