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 increase in exhaust volume or achieve a more aggressive tone. All products are manufactured from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. Each performance exhaust system is developed for a wide range of vehicles, with ongoing research and development to meet performance exhaust requirements. - 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 to over 90 countries Specifications: - Pipe Diameter: 70.00 - Race Product: No - EMarked: No Kit comes with: - LH Front Silencer - MSAU631 - RH Front Silencer - MSAU632 - Centre Silencer Delete Pipe - MSAU633REP - LH Rear Silencer - MSAU634 - RH Rear Silencer - MSAU635 - Brushed Titanium GT (round) 100 Exhaust Tip, Standard - MSVW374 Vehicle Compatibility: - 2013-2018 Audi S8 D4 4.0 TFSI quattro Tiptronic