Stage 3 Audi TT 1.8T 20V ECU Firmware – ME7.5 354503 / 0002 ( +) 0261207027

Change log

  • v1.0 — 2025-06-01
    • Stage 1 & Stage 3 performance maps for 1.8T ME7.5
    • Fuel, ignition and boost control recalibrated
    • Stage 3 setup validated with 380cc injectors
    • Lambda and throttle enrichments refined
    • Ready-to-flash via CMD or any ME7.5-compatible tool​

Release notes

  • v1.0 — 2025-06-01
    • Dual-version release: Stage 1 for stock turbo; Stage 3 for high-power builds
    • Developed for 2000 Audi TT 1.8T 20V with ME7.5 ECU
    • Built from dyno-tuned reference files and field-tested​
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