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 exhaust volume and tone. All products are manufactured from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. Performance exhaust systems are available for a wide range of vehicles. 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 durability in harsh conditions Specifications: - Pipe Diameter: 76.20 - Race Product: No - EMarked: No Kit comes with: - MSAU529: Polished GT (round) 90 Exhaust Tip, Standard - MSAU529 - MSBM225: Flexible Connecting Pipe - MSBM225 - MSBM226REP: Centre Silencer Delete Pipe - MSBM226REP - MSBM227: Rear Silencer Connecting Pipe - MSBM227 - MSBM228: Rear Silencer - MSBM228 - MSBM249: Outlet Pipe - MSBM249 Vehicle Compatibility: - 2014-2016 BMW 4 Series F32 428i Coupe (Automatic Gearbox, without Tow Bar, None xDrive, N20 Engine Only)