This module is designed to integrate with the existing driver select modes to operate the exhaust valves. Once installed, the module sets valve behavior as follows: Comfort / Eco Mode = Closed up to 5,000 RPM, Auto Mode = Closed up to 3,000 RPM, Dynamic = Open all the time, Cold Start = Valve closed (usually open with stock exhaust), and 4 Cylinder mode = Valve closed. The module also offers an override to open and close valves on demand, regardless of drive mode, by pressing the ESP button twice in quick succession. All values are pre-set into the module and cannot be altered. Active Valve Control (AVC) supports vehicles equipped with factory exhaust valves as well as a growing range of Milltek Sport performance exhaust upgrades with Valve Control. Optional app control is available on selected models via iPhone or Android smartphone apps. AVC provides full CAN BUS integration with built-in safety controls, allowing the driver to choose when the valves open and close to tune the exhaust sound and volume. - Integrates with existing driver select modes for valve operation - Override function allows manual valve control via ESP button - Supports both factory and Milltek Sport valve-equipped exhaust systems - Optional app control available on selected models Specifications: - Pipe Diameter: 63.50 - Installation Time: 1 to 1.5 hours (including removing OE system) - Race Product: No - EMarked: No Vehicle Compatibility: - Audi S4 3.0 Turbo V6 B9 Saloon/Sedan & Avant (Non Sport Diff Models) Left Hand Drive 2016 and later - Audi S4 3.0 Turbo V6 B9 Saloon/Sedan & Avant (Non Sport Diff Models) Right Hand Drive 2016 and later - Audi S4 3.0 Turbo V6 B9 Saloon/Sedan & Avant (Sport Diff Models Only & Without Brace Bars) Left Hand Drive 2016 and later - Audi S4 3.0 Turbo V6 B9 Saloon/Sedan & Avant (Sport Diff Models Only & Without Brace Bars) Right Hand Drive 2016 and later - Audi S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & WITH Brace Bars) Left Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & WITH Brace Bars) Right Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & Without Brace Bars) Left Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & Without Brace Bars) Right Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) Left Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) Right Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Sportback B9 (Non Sport Diff Models Only) Left Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Sportback B9 (Non Sport Diff Models Only) Right Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & WITH Brace Bars) Left Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & WITH Brace Bars) Right Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & without Brace Bars) Left Hand Drive 2017 and later - Audi S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & without Brace Bars) Right Hand Drive 2017 and later - Audi SQ5 3.0TFSI V6 Turbo 2017 and later