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Change log
v1.0 — 2025-06-24
• Initial release of a Stage 2 tuning package for the Golf 5 GTI (MED9.1).
• Includes both a standard performance file and an optional version with Pop & Bang.
Release notes
v1.0 — 2025-06-24
• Package includes three files: Original, Stage 2, and Stage 2 with Pop & Bang.
• Confirm ECU numbers (Prod: 1K0907115J_0030, ECU: 8P0907115B) and software 387479 before flashing.
• IMPORTANT: Stage 2 requires a high-flow downpipe and upgraded intercooler for correct operation.
• Pop & Bang feature is active in sport modes for aggressive sound.
• For off-road or competition use ONLY.