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Change log
v1.0 — 2025-06-21
• Initial release of a Stage 2 and Stage 3 tuning package for the BMW Z4 E89 35is (Siemens MSD8x).
• Provides a full tuning path for modified and hybrid-turbo vehicles.
Release notes
v1.0 — 2025-06-21
• Package includes three files: Original, Stage 2, and Stage 3.
• Confirm software string 0044CC0IMC0SIJB2S before flashing.
• Stage 2: Requires upgraded hardware (high-flow downpipes, intake, and intercooler).
• Stage 3: Requires all Stage 2 hardware PLUS an upgraded turbocharger(s) and fuel system.
• Stage 2 & 3 files are for off-road or competition use ONLY.
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