Stage 2 124 Spider Abarth 1.4 Multiair — MM8GMK 894190AH Marelli — ECU Firmware HW681
Change log
- v1.0 — 2025-06-22
• Initial release of the Stage 2 calibration for the Abarth 124 Spider (Marelli MM8GMK).
• A comprehensive revision of all performance maps for vehicles with an upgraded exhaust.
Release notes
- v1.0 — 2025-06-22
• Package includes Original + Stage 2 binaries
• Confirm ECU production number 50053469 and software 894190AH before flashing
• IMPORTANT: Requires a high-flow or decat downpipe for correct operation.
• Designed for a mechanically modified vehicle; high-octane fuel required
• For off-road or competition use ONLY