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 achieve a more aggressive tone if preferred. All products are manufactured from 304L 'Aircraft' Grade stainless steel, ensuring durability in harsh conditions. Each performance exhaust system is developed to fit a wide range of vehicles, with ongoing research and development to meet evolving performance exhaust 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 custom sound and tone - Manufactured from 304L 'Aircraft' Grade stainless steel - Made in the UK and distributed globally Specifications: - Pipe Diameter: 76.20 - Race Product: No - EMarked: No Kit comes with: - MSBM225: Flexible Connecting Pipe - MSBM225 - MSBM226: Centre Silencer - MSBM226 - MSBM251: Rear Silencer - MSBM251 - MSBM252: Outlet Pipe (including Active Exhaust Valve) - MSBM252 - MSTIP197: Cerakote Black GT (round) 76 Exhaust Tip - MSTIP197 Vehicle Compatibility: - 2014-2016 BMW 4 Series F32 428i Coupe (Automatic Gearbox, without Tow Bar, None xDrive, N20 Engine Only)