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 and tone. All products are manufactured from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. These performance exhaust systems are developed for a wide range of vehicles, with ongoing research and development to meet evolving performance requirements. All products are made in the UK and distributed to over 90 countries worldwide. - Direct replacement for the original exhaust system - Available in multiple configurations for sound and tone customization - Manufactured from 304L aircraft grade stainless steel - Designed for a wide range of vehicles Specifications: - Pipe Diameter: 76.20 - Fitment Time: 1.5 to 2 hours (including removing OE system) - Race Product: No - EMarked: Yes - EMark Number: e24*70/157*2007/34*2206*00 Kit comes with: - Adapter Pipe for Catback - MSAU642 - Centre Silencer - MSAU643 - Rear Silencer - MSAU644 - LH Rear Connecting Pipe (inc. Electric Valve) - MSAU645 - RH Rear Connecting Pipe - MSAU646 - Cerakote Black GT (round) 90 Exhaust Tip, LH - MSTIP184 - Cerakote Black GT (round) 90 Exhaust Tip, RH - MSTIP185 Vehicle Compatibility: - 2014-2018 Audi S1 2.0 TFSI quattro