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AUDI S3 2.0 TSI EA888 GEN 3 MQB STAGE 1 [ECU] [19-20]


355HP / 338LB-FT
Unitronic Stage 1 Performance Software is precisely calibrated for use with 91 oct/95 ron fuel and provides huge power gains over stock while maintaining an OEM-like driving experience with exceptional reliability.

Unitronic Stage 1 TCU Performance Software and Unitronic Intercooler are required to achieve advertised power figures.

Performance Software for your ECU Box Code is subject to availability. For full release information, click here.


Flashed directly through the (OBDII) Diagnostic port of your vehicle (10-15 minutes).

This vehicle has added support through UniCONNECT+ which allows you to program your own vehicle right in your own garage. Learn More


  • Engineered with Strict Industry Standards
  • Extensively Tested Under Various Driving Conditions
  • Factory Safety Limiters Retained
  • Engine Temperature Protection (Rev Limit based on Engine Coolant Temperature)
  • Optimized Responsiveness and Drivability
  • Optimized Smoothness and Driving Comfort
  • Power Delivery Perfectly Optimized Throughout the Power Band
  • Improved Fuel Efficiency
  • Speed Governor Removed

Recommended Hardware

Oil and Additives Recommendation Unitronic uses and recommends Liqui Moly Oil & Additives exclusively for your vehicle, which meet Audi/VW approvals. To ensure your vehicle is maintained with the #1 oil brand in Germany, see what is recommended for you with the Liqui Moly Oil Guide.

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