The Active Valve Control (AVC) module wires into the Canbus feed and changes the default values for when the exhaust valves open and close. Once installed, the module is instantly activated and the operation is changed based on the current drive select mode. The programmed values are preloaded and cannot be changed. The default values are adjusted as follows: Comfort mode keeps the valves closed up to 5,000 RPM, Auto mode keeps the valves closed up to 3,000 RPM, and Dynamic mode keeps the valves open at all times. In 4 cylinder mode, the valves remain closed in all drive modes. The module also forces the valves to be closed on cold start, which are normally open. This product features a manual override to open the valves on demand regardless of drive mode. This can be achieved by pressing the ESP button twice within 2 seconds. Repeat this action to deactivate and return to normal operation. - Wires into Canbus feed to control exhaust valve operation - Preloaded, non-adjustable valve control values for each drive mode - Manual override to open valves on demand via ESP button sequence - Forces valves closed on cold start Specifications: - Pipe Diameter: 0.00 - Installation Time: 1 to 1.5 hours (including removing OE system) - Race Product: No - EMarked: No Vehicle Compatibility: - Audi RS6 C7 4.0 TFSI biturbo quattro including Performance Edition 2013-2018 - Audi RS7 C7 Sportback 4.0 V8 TFSI biturbo including Performance Edition 2013-2018 - Audi S6 4.0 TFSI C7 quattro 2012-2018 - Audi S7 Sportback 4.0 TFSI quattro S tronic 2012-2018