Upgrade your 2015-2020 Audi S3 with the MBRP T304 Stainless Steel Cat Active Exhaust System. Designed for performance enthusiasts, this exhaust system allows for a customizable sound experience, letting you switch between aggressive and refined exhaust notes. Constructed from high-quality T304 stainless steel, it promises durability and resistance to the elements, ensuring a long lifespan. The active valve technology optimizes exhaust flow for enhanced horsepower and torque, making it an ideal choice for those who want to get the most out of their S3. Easy to install, this system combines performance and versatility, allowing you to tailor your driving experience to your preferences.