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. Manufactured from 304L aircraft grade stainless steel, these systems are built to withstand harsh conditions. All products are made in the UK and distributed globally. - Direct replacement for the original exhaust system - Available in multiple configurations for sound customization - Constructed from 304L aircraft grade stainless steel - Manufactured in the UK and distributed worldwide Specifications: - Pipe Diameter: 76.20 - Fitment Time: 1 to 1.5 hours (including removal of OE system) - Race Product: No - EMarked: Yes - EMark Number: e24 70_157 2007_34 1732 00 Kit comes with: - Twin Front Silencer Assembly - MSAU526 - Rear Silencer - MSAU527 - Cerakote Black GT (round) 90 Exhaust Tip, Standard - MSAU532 Vehicle Compatibility: - Audi RS3 Sportback S tronic (8P) 2011-2012