Stage 2 BMW F85 X5-M 4.4 Turbo Siemens/Continental MSD85 9ZCI90 – Tuning File (Performance Boost) 9ZCI90

Change log

  • v1.0 — 2025-05-18
    • Initial Stage 2 tuning for BMW X5-M MSD85
    • Boost, fuel, torque & throttle maps optimised
    • Cold-start behavior refined
    • Dyno-tested for power and reliability
    • Full binary ready for flash​

Release notes

  • v1.0 — 2025-05-18
    • Stage 2 calibration for MSD85-equipped X5-M 4.4 Twin-Turbo
    • Verified on dyno, developed by Dyno Chiptuningfiles
    • Optimised for stronger midrange and full-throttle response
    • Flash-ready complete binary file format​
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