This Stage 1 ECU firmware targets the 2012 Audi A6 with the powerful 3.0 V6 BiTDI CGQB engine. Developed for Bosch EDC17_CP44 (SW 0003, Software ID 055629), it enhances the mid-range torque band and turbo response, ideal for long-distance performance or sporty daily use. Maintains DPF and AdBlue systems for compliance with emission standards.