Volkswagen Polo 1.4 TSI CSTA / CSSA Stage 2 (130PS / Auto) - Reviews | MED17.5.25

Volkswagen Polo 1.4 TSI CSTA / CSSA Stage 2 (130PS / Auto) - Reviews | MED17.5.25
Polo 1.4 TSI CSTA CSSA — MED17.5.25 551368 Bosch — ECU Files
This is a high-performance Stage 2 tuning file for the VW Polo 1.4 TSI, equipped with a Bosch MED17.5.25 ECU. This calibration is designed for enthusiast vehicles that have been mechanically modified with a high-flow or decat downpipe and a performance intercooler to achieve the maximum possible performance from the potent TSI engine.

This aggressive remap completely transforms the car, delivering a thrilling and responsive driving experience. By re-calibrating all essential engine parameters, including boost pressure, ignition timing, and fueling, this tune provides a massive increase in horsepower and torque. This turns the Polo into a surprisingly quick and capable hot hatch, perfect for spirited driving or track days.

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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.

💬 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.

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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
 
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