This package includes two performance versions for the 2012 Audi A5 3.0 V6 TDI CR with CDUC engine and automatic gearbox. Based on Bosch EDC17_CP44 ECU and Software ID 521696, the Stage 1 file improves responsiveness with all emissions systems intact. The Stage 2 version disables DPF logic and further raises torque and boost parameters for off-road setups. Perfect for tuners needing flexible calibration options for OEM and modified builds.