ENGINE · 2015-2021
8AR-FTS tuning
8AR-FTS — Toyota 2.0 turbo (Lexus IS200t / NX200t / RC200t). I4 turbo direct + port injection (D-4ST), 2.0 L, 241-245 HP stock. Cars: Lexus IS200t, NX200t, RC200t, Toyota Crown (Japan).
Engine specs
| Engine code | 8AR-FTS |
|---|---|
| Configuration | I4 turbo direct + port injection (D-4ST) |
| Displacement | 2.0 L |
| Production years | 2015-2021 |
| Stock power | 241-245 HP |
| ECU family | Denso 89663-xxxxx → |
Tuning stages on 8AR-FTS
| Stage 1 | +30-50 HP |
|---|---|
| Stage 2 | +60-90 HP (intake + downpipe) |
| Stage 3 | +120+ HP (turbo upgrade) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on 8AR-FTS
Common DTC codes on 8AR-FTS
Brands running 8AR-FTS
Workshop workflow
- Read the 8AR-FTS 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 Denso 89663-xxxxx 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.