Stage 2 Polo 1.4 TSI CSTA CSSA — MED17.5.25 551368 Bosch — ECU Files 04E907309N

• Initial release of the Stage 2 calibration for the VW Polo 1.4 TSI (MED17.5.25).
• A comprehensive revision of performance maps for vehicles with an upgraded exhaust and intercooler.
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• Package includes Original + Stage 2 binaries
• Confirm ECU numbers (Prod: 04E906027AH, ECU: 04E907309N) and software 551368 before flashing
• IMPORTANT: Requires upgraded hardware (high-flow downpipe and intercooler) for correct operation.
• Designed for a mechanically modified vehicle; high-octane fuel required
• For off-road or competition use ONLY​