Stage 1 Skoda Octavia 1.4 TSI CSS ECU File – 04E906027MR SW 023048 4700

Change log

  • v1.0 — 2025-06-01
    • Initial Stage 1 calibration for 1.4 TSI CSS (EA211)
    • Torque, boost & ignition tables refined
    • Checksum correction & CVN patch applied
    • Verified flashing via Autotuner OBD​

Release notes

  • v1.0 — 2025-06-01
    • Designed for tuners seeking a safe single-file Stage 1 uplift for Octavia III 1.4 TSI
    • Delivers sharper throttle and stronger mid-range while keeping OEM smoothness
    • Compatible with stock exhaust & catalytic converter
    • Supplied as complete package with original file for easy revert
    • Off-road / motorsport use only — installer responsible for local compliance​

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