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Change log
v1.0 — 2025-07-28
• Initial release of the Stage 2+ (K04) calibration for the Golf 5 GTI (MED9.1).
• A comprehensive recalibration of all maps for a full K04 turbo conversion.
Release notes
v1.0 — 2025-07-28
• Package includes Original + Stage 2+ (K04) binaries.
• Confirm ECU numbers (Prod: 1K0907115J, ECU: 0261S02331) and software 387479 before flashing.
• IMPORTANT: Requires significant hardware upgrades (K04 turbo, S3 injectors, full exhaust, intercooler, HPFP). This file MUST NOT be used on a stock or Stage 1/2 car.
• For off-road or competition use ONLY.
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