Leon Cupra 2.0 TFSI CDLA — MED9.1 502834 Bosch — ECU Files 0261S02724 Stage 1 

Change log

  • v1.0 — 2025-06-15
    • Initial Stage 1 calibration for Bosch MED9.1 (SW 502834)
    • Aggressive revision of torque, boost, and ignition maps for performance
    • Optimized for the 2.0 TFSI CDLA engine
    • Checksum integrity verified​
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Release notes

  • v1.0 — 2025-06-15
    • Package includes Original + Stage 1 binaries
    • Confirm ECU numbers (Prod: 1P0907115AC, ECU: 0261S02724) and software 502834 before flashing
    • Compatible with tools supporting Bosch MED9.1 controllers
    • Designed for a mechanically stock vehicle; high-octane fuel recommended
    • Intended solely for off-road or motorsport applications​
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