3-Inch Turbo-Back Exhaust System T304 Stainless Steel

The CTS Turbo 3-inch turbo-back exhaust system is meticulously crafted for the 2013 and later Audi S3 8V Sedan. Hand TIG welded using premium T304 stainless steel, this system is built to withstand both daily driving and aggressive performance applications. Its design prioritizes maximum flow, addressing limitations found in smaller 2.5-inch or 2.75-inch exhausts that can restrict peak power. The 3-inch diameter is ideal for enthusiasts pursuing significant horsepower gains. Key features include true 3-inch stainless steel cat-back construction, CNC mandrel bent piping for smooth airflow, and polished stainless steel tubing. The system delivers an aggressive sound during hard acceleration while remaining subtle during cruising. It also includes adjustable double-wall 3.5-inch round exhaust tips for a customized look. Proper tuning software, such as a Stage 2 software upgrade, is strongly recommended to manage the Check Engine Light (CEL) that will occur without the factory catalytic converter. CTS Turbo also suggests opting for a High Flow Cat to minimize environmental impact. Installation hardware and stainless steel clamps are included. This exhaust system is specifically designed for the Audi S3 8V Sedan model.