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 a more aggressive tone. Each system is manufactured from 304L aircraft grade stainless steel to ensure durability in harsh conditions. All products are made in the UK and distributed to over 90 countries. - Direct replacement for the original exhaust system - Available in multiple configurations for sound customization - Manufactured from 304L aircraft grade stainless steel - Made in the UK and distributed worldwide Specifications: - Pipe Diameter: 60.00 - Installation Time: 2 to 3 hours (including removal of OE system) - Race Product: No - EMarked: Yes - EMark Number: AUDIS5V8 Kit comes with: - Brace Bar - MSAU314 - Centre Silencer - MSAU381 - LH Rear Silencer - MSAU384 - RH Rear Silencer - MSAU385 Vehicle Compatibility: - 2007-2011 Audi S5 4.2 V8 B8 Coupe (Manual Only)