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 constructed from 304L 'Aircraft' Grade stainless steel to ensure durability in harsh conditions. All products are manufactured in the UK and distributed globally. - Direct replacement for the original exhaust system - Available in multiple configurations for customized sound - Constructed from 304L 'Aircraft' Grade stainless steel - Manufactured in the UK and distributed worldwide Specifications: - Pipe Diameter: 70.00 - Race Product: No - EMarked: No Kit comes with: - Y Pipe - MSAU488 - Polished GT (round) 100 Exhaust Tip - MSAU491 - 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