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. 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 and tone customization - Manufactured from 304L aircraft grade stainless steel - Made in the UK and distributed globally Specifications: - Pipe Diameter: 76.20 - Installation Time: 2 to 2.5 hours (including removal of OE system) - Race Product: Yes - EMarked: No Kit comes with: - LH Axle Pipe - MSBM336 - RH Axle Pipe - MSBM337 - Rear Silencer Assembly - MSBM338 - LH Outlet Pipe to OE Trims - MSBM339 - RH Valved Outlet Pipe to OE Trims - MSBM340 - Front Connecting Pipe - MSBM343 - GPF|OPF Bypass Section - MSBM344 - GPF|OPF Bypass LH Section - MSBM345 - GPF|OPF Bypass RH Section - MSBM346 Vehicle Compatibility: - 2019 and later BMW 3 Series G20 & G21 M340i XDrive Saloon & Touring Models (OPF/GPF Models Only) - 2020 and later BMW 4 Series G22 M440i Coupe (OPF/GPF Equipped Models Only)