Stage 1 Audi TT RS 2.5 TFSI ECU File – 509077 / SW 0010 / MED9.1 Bosch Binary 0261S02790

Change log

  • v1.0 — 2025-06-04
    • Initial Stage 1 remap for MED9.1 CEPA engine
    • Boost, load and ignition curves optimised
    • Cold start and fuel trims adjusted
    • CVN and checksum status: N/A (verify manually before flash)​

Release notes

  • v1.0 — 2025-06-04
    • Designed for drivers seeking safe Stage 1 gains on the Audi TT RS 2.5 TFSI
    • Ideal for use with stock turbo and bolt-on mods
    • Motorsport/off-road use only​
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