Stage 2 Leon Cupra 2.0 TFSI — MED9.1 386637 Bosch — Calibration File 0261S02724

Change log

  • v1.0 — 2025-06-15
    • Initial release of a complete tuning package for Bosch MED9.1 (SW 386637).
    • Includes a responsive Stage 1 for stock cars and a high-performance Stage 2 for modified vehicles.
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Release notes

  • v1.0 — 2025-06-15
    • Package includes three files: Original, Stage 1, Stage 2
    • Confirm ECU numbers (Prod: 1P0907115C, ECU: 0261S02724) and software 386637 before flashing
    Stage 1: Designed for a mechanically stock vehicle. High-octane fuel recommended.
    Stage 2: IMPORTANT - Requires upgraded hardware (high-flow downpipe, intake, intercooler) for correct operation.
    • For off-road or competition use ONLY​
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