{"product_id":"valvetronic-cat-back-system-2","title":"Valvetronic Cat-Back System","description":"The Fi Exhaust Valvetronic Cat-Back System is a direct bolt-on performance exhaust designed for the Audi S4\/S5 (B9) models equipped with the 3.0TFSI engine, covering years 2018-2024. Constructed from high-grade T304 stainless steel, this system aims to provide an exhilarating soundtrack while improving the vehicle's auditory experience.\n\nFeaturing advanced valvetronic technology, the Fi Exhaust system allows for precise control over airflow and sound volume. When the valves are closed, exhaust gases are routed through the muffler, ensuring a comfortable and low-profile drive. Conversely, opening the valves fully produces an intense and sporty soundtrack. This technology is engineered to enhance overall performance and torque, with an average horsepower increase of 5-10% expected when paired with a full catless system including an ultra-high flow downpipe.\n\nThe system offers integration with the car's existing controls, such as the factory exhaust\/sport button or drive modes, for managing valve operation between street and race settings. An optional Fi Pro remote control upgrade with Bluetooth OBD\/Mobile app functionality is also available for more advanced control. It is important to note that not all control options are available for every model, and users should confirm compatibility. The unique sound and performance characteristics are achieved through individually designed muffler internals, fabricated to deliver an ultimate driving experience.","brand":"Fi Exhaust","offers":[{"title":"Default Title","offer_id":52688134996280,"sku":"AD-S4B9-CBV","price":3749.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/664198331.webp?v=1784889030","url":"https:\/\/store.motormia.co\/products\/valvetronic-cat-back-system-2","provider":"MOTORMIA","version":"1.0","type":"link"}