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 system - Available in multiple configurations for sound customization - Constructed from 304L aircraft grade stainless steel - Made in the UK and distributed worldwide Specifications: - Pipe Diameter: 60.30 - Race Product: No - EMarked: No Kit comes with: - LH Downpipe - MSAU461 - RH Downpipe - MSAU462 - Brace Bar - MSAU513 - X Pipe - MSAU594 - Centre Silencer - MSAU595 - LH ValveSonic Rear Silencer - MSAU620 - RH ValveSonic Rear Silencer - MSAU621 - ValveSonic Electronic Valve Fitting Kit - MSVSFK01 - Polished GT (round) 100 Exhaust Tip, Standard - MSVW373 Vehicle Compatibility: - 2012-2016 Audi S4 3.0 Supercharged V6 B8.5 - 2011-2016 Audi S5 3.0 TFSI B8.5 Coupe & Cabriolet - 2012-2016 Audi S5 3.0 TFSI B8.5 Sportback