This range of Cat-Back systems is designed as a direct replacement 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. Each performance exhaust system is made in the UK and distributed to over 90 countries worldwide. - Direct replacement for the original exhaust system - Available in multiple configurations for sound customization - Constructed from 304L aircraft grade stainless steel - Made in the UK and distributed globally Specifications: - Pipe Diameter: 76.20 - Installation Time: 1.5 to 2 hours (including removal of OE system) - Race Product: No - EMarked: No Kit comes with: - Adapter Pipe for Catback - MSAU642 - Centre Silencer Delete Pipe - MSAU643REP - Rear Silencer - MSAU644 - LH Rear Connecting Pipe (inc. Electric Valve) - MSAU645 - RH Rear Connecting Pipe - MSAU646 - Polished GT (round) 90 Exhaust Tip, LH - MSTIP180 - Polished GT (round) 90 Exhaust Tip, RH - MSTIP181 Vehicle Compatibility: - Audi S1 2.0 TFSI quattro 2014-2018