This range of Cat-Back systems is designed as a direct replacement for the original exhaust, offering improved sound and aesthetics. Multiple configurations are available, allowing the owner to select the desired increase in exhaust volume and achieve a more aggressive tone if preferred. All products are manufactured from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. Each performance exhaust system is made in the UK and distributed to over 90 countries worldwide. - Direct replacement for the original system - Available in multiple configurations for sound 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: No Kit comes with: - MSAU693: LH Downpipe - MSAU693 - MSAU694: RH Downpipe - MSAU694 - MSAU696: LH Front Silencer Rep Pipe - MSAU696 - MSAU697: RH Front Silencer Rep Pipe - MSAU697 - MSAU711: Connecting Pipe - MSAU711 - MSAU712: LH Rear Silencer with Valve - MSAU712 - MSAU713: RH Rear Silencer with Valve - MSAU713 - MSTIP162: Cerakote Black Jet (oval) 104 x 80 Exhaust Tip - MSTIP162 - MSAU701: LH Mounting Bracket - MSAU701 - MSAU702: RH Mounting Bracket - MSAU702 Vehicle Compatibility: - 2016 and later Audi S4 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (Sport Diff Models Only & Without Brace Bars) - Left Hand Drive Cars Only - 2017 and later Audi S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & without Brace Bars) - Left Hand Drive Cars Only