This Stage 2 ECU calibration for the Audi S5 3.0 TFSI (CAKA engine) offers enhanced performance, designed for vehicles equipped with intake/exhaust modifications. Developed on Siemens/Continental Simos8.4 with software ID S8400H3000000 and SW-Version 0005, the file raises boost thresholds, torque maps, and throttle response logic for sharper acceleration and increased mid-range power. Safe to flash via CMD.