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, supporting a wide range of vehicles. - Direct replacement for the original exhaust system - Available in multiple configurations for sound customization - Constructed from 304L aircraft grade stainless steel - Designed and manufactured in the UK Specifications: - Pipe Diameter: 60.30 - Installation Time: 2 to 3 hours (including removal of OE system) - Race Product: No - EMarked: No Kit comes with: - LH Downpipe - MSAU461 - RH Downpipe - MSAU462 - Centre Silencer - MSAU464 - LH Rear Silencer Delete Pipe - MSAU467 - RH Rear Silencer Bypass Pipe - MSAU468 - Front Silencer - MSAU512 - Brace Bar - MSAU513 - Polished Jet (oval) 150 x 95 Exhaust Tip, LH - MSTIP146 - Polished Jet (oval) 150 x 95 Exhaust Tip, RH - MSTIP147 Vehicle Compatibility: - 2009-2011 Audi S5 3.0 TFSI B8 Coupe & Cabriolet (S tronic)