Audi A6/S6/RS6 Transmission TCU Upgrade
APR's Performance Lineup for Audi A6, S6, and RS6 vehicles.
Transform your vehicle with our Transmission Control Unit (TCU) Software Upgrades. We optimize the factory transmission management system to take full advantage of the transmission's capabilities for large leaps in performance, along with added features to make the driving experience more exciting.
Transform your vehicle with our Transmission Control Unit (TCU) Software Upgrades. We optimize the factory transmission management system to take full advantage of the transmission's capabilities for large leaps in performance, along with added features to make the driving experience more exciting.