This range of Cat-Back systems is designed for those seeking improved sound and aesthetics. Each system is a direct replacement for the original exhaust and is available in multiple configurations, 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 designed for a wide range of vehicles, with ongoing research and development to meet 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 sound and tone customization - Manufactured from 304L aircraft grade stainless steel - Designed and made in the UK Specifications: - Pipe Diameter: 76.20 - Installation Time: 2 to 2.5 hours (including removal of OE system) - Race Product: No - EMarked: Yes - EMark Number: BMWM340 Kit comes with: - MSBM334: LH Adaptor - MSBM334 - MSBM335: RH Adaptor - MSBM335 - MSBM336: LH Axle Pipe - MSBM336 - MSBM337: RH Axle Pipe - MSBM337 - MSBM338: Rear Silencer Assembly - MSBM338 - MSBM339: LH Outlet Pipe to OE Trims - MSBM339 - MSBM340: RH Valved Outlet Pipe to OE Trims - MSBM340 Vehicle Compatibility: - BMW 3 Series G20 & G21 M340i XDrive Saloon & Touring (OPF/GPF Models Only) 2019 and Later - BMW 3 Series G20 M340i Sedan inc Xdrive (North American / ROW Models Only) 2021 and Later - BMW 4 Series G22 M440i Coupe (NAS/ROW Vehicles Only) 2021 and Later - BMW 4 Series G22 M440i Coupe (OPF/GPF Equipped Models Only) 2020 and Later