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. All products are manufactured from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. The performance exhaust systems are developed for a wide range of vehicles and are made in the UK. - Direct replacement for the original exhaust system - Available in multiple configurations for sound customization - Manufactured from 304L aircraft grade stainless steel - Designed for a wide range of vehicles Specifications: - Pipe Diameter: 60.30 - Installation Time: 2 to 3 hours (including removal of OE system) - Race Product: No - EMarked: Yes - EMark Number: e24 70_157 2007_34 1523 00 Kit comes with: - LH Downpipe - MSAU461 - RH Downpipe - MSAU462 - Centre Silencer - MSAU464 - LH Rear Section (no tip) - MSAU503 - RH Rear Section (no tip) - MSAU504 - Polished GT (round) 80 Exhaust Tip, LH Twin Tip - MSAU505 - Polished GT (round) 80 Exhaust Tip, RH Twin Tip - MSAU506 - Front Silencer - MSAU512 - Brace Bar - MSAU513 Vehicle Compatibility: - 2009-2011 Audi S5 3.0 TFSI B8 Coupe & Cabriolet (S tronic)