The Cat-Back systems are designed as direct replacements for the original exhaust, offering improved sound and aesthetics. Multiple configurations are available, allowing the owner to select the desired exhaust volume and tone. All systems are manufactured from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. These performance exhaust systems are developed for a wide range of vehicles, with ongoing research and development to meet performance exhaust requirements. All products are made in the UK and distributed to over 90 countries worldwide. - 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 globally Specifications: - Pipe Diameter: 63.50 - Fitment Time: 1 to 1.5 hours (including removal of OE system) - Race Product: No - EMarked: Yes - EMark Number: AudiS4S5B9 Kit comes with: - LH Downpipe - MSAU693 - RH Downpipe - MSAU694 - Connecting Pipe - MSAU698 - LH Rear Silencer with Valve - MSAU699 - RH Rear Silencer with Valve - MSAU700 - LH Mounting Bracket - MSAU701 - RH Mounting Bracket - MSAU702 - Front Silencer - MSAU707 - Burnt Titanium GT (round) 100 Exhaust Tip, Standard - MSTIP194 Vehicle Compatibility: - 2017 and later Audi S5 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) - Left Hand Drive Cars Only