The range of Cat-Back systems is designed for those seeking to enhance exhaust sound and aesthetics. Each system is a direct replacement for the original, with multiple configurations available to allow owners to select their preferred exhaust volume and tone. All products are constructed from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. Performance exhaust systems are developed for a wide variety of vehicles, with ongoing research and development to meet evolving performance requirements. All products are manufactured in the UK and distributed globally. - Direct replacement for the original exhaust system - Available in multiple configurations for sound and tone customization - Constructed from 304L aircraft grade stainless steel - Manufactured in the UK and distributed worldwide Specifications: - Pipe Diameter: 69.85 - Fitment Time: 1 to 1.5 hours (including removal of OE system) - Race Product: No - EMarked: Yes - EMark Number: e24*70/157*1999/101*1065*00 Kit comes with: - MSAU289: Centre Silencer - MSAU289 - MSAU347: Rear Silencer - MSAU347 Vehicle Compatibility: - 2006-2012 Audi S3 2.0 T quattro 3-Door 8P