Stage 1 Audi R8 5.2 V10 FSI ECU File – 420910552C / 400762 / SW 0040 (Bosch MED9.1 Performance Tune) 0261S02465

Change log

  • v1.0 — 2025-06-01
    • Stage 1 tune for Bosch MED9.1 420910552C
    • Fuel, spark and throttle response improved
    • Rev and VMAX parameters retained
    • Designed on 2011 R8 5.2 V10 FSI platform​

Release notes

  • v1.0 — 2025-06-01
    • Optimized Stage 1 ECU firmware for Audi R8 V10
    • Perfect for stock hardware or light modifications
    • Plug-and-play ready — no additional patching needed
    • Suitable for spirited road use and track events​
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