Stage 2 BMW 320i F31 B48 ECU File – MG1CS003 R1C9A1G1B / R1C9A1G1BADAX3 ( Tune) R1C9A1G1B

Change log

  • v1.0 — 2025-06-01
    • Stage 2 file developed for MG1CS003 ECU on B48 engine
    • Load, boost and torque maps optimized
    • FEMTO-compatible structure with full OEM binary included​

Release notes

  • v1.0 — 2025-06-01
    • Targeted for modified B48 setups — intake/exhaust upgrades
    • Delivers linear power with stable ECU diagnostics
    • Use limited to motorsport/off-road vehicles — not road legal without emissions approval​