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 a more aggressive tone if preferred. 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 and tone customization - Constructed from 304L aircraft grade stainless steel - Distributed to more than 90 countries worldwide Specifications: - Pipe Diameter: 76.20 - Race Product: No - EMarked: No Kit comes with: - F5133: Adapter Pipe 76.2 O.D. to 62.3 I.D. 110 long - MSBM225: Flexible Connecting Pipe - MSBM225 - MSBM226REP: Centre Silencer Delete Pipe - MSBM226REP - MSBM250: Mounting Bracket - MSBM250 - 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 (Manual Gearbox, without Tow Bar, None xDrive, N20 Engine Only)