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New Tuning File Available: Polo 1.4 TSI CSTA CSSA — MED17.5.25 551368 Bosch — ECU Files 04E907309N - Volkswagen Stage 2 — Prod: 04E906027AH / SW: 551368 — A high-performance tune requiring a downpipe, turning your Polo into a surprisingly fast hot hatch.
Welcome to the official discussion thread for the Volkswagen 1.4 TSI (CSTA / CSSA) tuning package. This calibration is specifically developed for the MED17.5.25 ECU and optimized to work seamlessly with the automatic transmission.
Target Performance: 130 PS / 95.6 kW.
Share your experience!
Have you flashed this file? Drop your dyno graphs, 0-100 times, reviews, or ask any technical questions below!
➜ Download Tuning File / View Full Specs
Discussion & Reviews: Volkswagen 1.4 TSI (CSTA / CSSA)
Welcome to the official discussion thread for the Volkswagen 1.4 TSI (CSTA / CSSA) tuning package. This calibration is specifically developed for the MED17.5.25 ECU and optimized to work seamlessly with the automatic transmission.
Target Performance: 130 PS / 95.6 kW.
Share your experience!Have you flashed this file? Drop your dyno graphs, 0-100 times, reviews, or ask any technical questions below!
All tuning files were acquired through official EVC.de resellers and verified on a professional dynamometer. Each calibration corresponds to the developer listed in the “Modified By” section — performance graphs may be available on their official website. These files are intended for motorsport or off-road use only. Ensure proper installation and do not operate the vehicle aggressively without first confirming mechanical condition. The seller accepts no responsibility for misuse or non-compliant road use.
Extended Product Information
- Calibrated for vehicles with a high-flow downpipe and upgraded intercooler
- Aggressive boost and torque maps for a significant performance increase
- Ignition timing and fuel maps extensively revised for high-octane fuel
- Transmission torque limiters adjusted to handle the increased power
- Catalyst monitoring disabled in software to prevent errors (for off-road use)
- All engine safety systems retained and recalibrated for high-performance use
➜ Download Tuning File / View Full Specs
