Custom Stage 1 ECU calibration for the 2017 Audi A6 3.0 V6 TDI CR equipped with CRTD engine and Bosch EDC17_CP54 control unit. This tuning file targets torque and boost refinement while retaining factory safety margins. The result is improved throttle sensitivity and mid-range response for a more confident drive — compatible with automatic transmission systems and emission-compliant configurations.