Active Valve Control (AVC) is available for vehicles equipped with factory exhaust valves, as well as for a growing range of Milltek Sport performance exhaust systems with Valve Control upgrades. Optional app control is available on selected models via iPhone or Android smartphone apps, providing full control of the exhaust system through CAN BUS integration and built-in safety controls. Milltek's AVC allows the driver to choose when the valves open and close, enabling tuning of the exhaust sound and volume. All performance exhaust systems are designed to cater to a wide range of vehicles, with continuous development to meet performance exhaust requirements. All products are made in the UK and distributed to over 90 countries worldwide. - Supports factory and Milltek Sport valve-equipped exhaust systems - Optional smartphone app control on selected models - Full CAN BUS integration with built-in safety controls - Allows driver to control exhaust valve operation for sound and volume tuning Specifications: - Pipe Diameter: 76.20 - Race Product: No - EMarked: No Kit comes with: - Active Valve Controller with Bluetooth - MSVS025 Vehicle Compatibility: - 2017 and later Audi RS3 Saloon / Sedan 400PS (8V MQB) - Non-OPF/GPF Models - 2019 and later Audi RS3 Saloon / Sedan 400PS (8V MQB) - OPF/GPF Models - 2015-2017 Audi RS3 Sportback (8V MQB - Pre Facelift Only) - 2017-2018 Audi RS3 Sportback 400PS (8V MQB - Facelift Only) - Non-OPF/GPF Models - 2019 and later Audi RS3 Sportback 400PS (8V MQB - Facelift Only) - OPF/GPF Models - 2016 and later Audi TT Mk3 TTRS 2.5TFSI Quattro (Non-OPF/GPF Models) - 2019 and later Audi TT Mk3 TTRS 2.5TFSI Quattro (OPF/GPF Models)