This Stage 2 ECU file targets the 2015 Audi A3 1.8 TSI paired with the DSG7 gearbox and Siemens/Continental SIMOS18 ECU. The calibration provides refined torque delivery, better throttle modulation, and optimised boost mapping for confident performance on road or track. Developed by a trusted tuning specialist and tested on dyno, this file offers significant improvements over stock while maintaining smooth driveability under DSG logic.