Stage 1 Nissan GTR 3.8 V6 ECU File – Hitachi MEC125n/axxx, Software 17SMF9TD3/1F00M4 - Product specifications

Stage 1 upgrade for Nissan GTR 3.8 V6 – enhanced throttle and boost logic via Hitachi MEC125n/axxx
Nissan GTR 3.8 V6 ECU File – Hitachi MEC125n/axxx, Software 17SMF9TD3/1F00M4
Optimized calibration for the 2022 Nissan GTR 3.8 V6 using the Hitachi MEC125n/axxx ECU platform. This Stage 1 file enhances performance through boost and ignition refinement while retaining OEM drivability and transmission safety limits. Designed for daily driving and occasional track sessions.
Modified By
Pree Chiptuning via EVC reseller (pree-tuning.at) 🇦🇹 Austria

Overview Feature list Copyright info Releases (1) Discussion

  • Stage 1 file for Nissan GTR 3.8L twin-turbo V6 using Hitachi MEC125n/axxx ECU
  • Refined boost control and ignition advance for improved throttle response
  • Torque delivery calibrated for smoother mid-range and reduced turbo lag
  • Maintains gearbox safety thresholds and emissions compatibility (no DTCs)
  • Cold-start behavior and idle characteristics preserved
  • No speed limiter (VMAX) changes included — ideal for conservative upgrades
  • Compatible with major flashing tools supporting Hitachi ECUs
  • Original file included for recovery or cross-comparison

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