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. 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. - Direct replacement for the original exhaust system - Available in multiple configurations for custom sound and tone - Manufactured from 304L 'Aircraft' Grade stainless steel - Made in the UK and distributed worldwide Specifications: - Pipe Diameter: 70.00 - Race Product: No - EMarked: No Kit comes with: - Y Pipe - MSAU488 - Cerakote Black GT (round) 100 Exhaust Tip - MSAU491B - Adapter Pipe - MSAU522 - Connecting Pipe - MSAU523 - LH Rear Silencer Assembly - MSAU524 - RH Rear Silencer Assembly - MSAU525 Vehicle Compatibility: - 2008-2011 Audi A4 3.0 TDi B8 quattro Saloon and Avant