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. All products are manufactured from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. The performance exhaust systems 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 customization - 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: - MSAU529: Polished GT (round) 90 Exhaust Tip, Standard - MSAU529 - MSBM225: Flexible Connecting Pipe - MSBM225 - MSBM226: Centre Silencer - MSBM226 - 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)