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 exhaust volume and tone. All products are manufactured from 304L aircraft grade stainless steel for durability in harsh conditions. Performance exhaust systems are available for a wide range of vehicles, with ongoing research and development to meet current demands. All products are made in the UK and distributed globally. - Direct replacement for the original exhaust system - Available in multiple configurations for sound and tone customization - Constructed from 304L aircraft grade stainless steel - Made in the UK and distributed worldwide Specifications: - Pipe Diameter: 80.00 - Installation Time: 1.5 to 2 hours (including removal of OE system) - Race Product: No - EMarked: Yes - EMark Number: M3M4G8X Kit comes with: - MSBM355: LH Valved Link & Outlet Pipe - MSBM356: RH Valved Link & Outlet Pipe - MSBM357: Rear Silencer - MSTIP244: Carbon Fibre Jet (round) 115 Exhaust Tip - MSBM326: Adaptor for OE GBP - MSBM326 Vehicle Compatibility: - 2021 and later BMW 3 Series G80/G81 M3 & M3 Competition S58 3.0 Turbo (North American / ROW Non-OPF/GPF Cars Only) - 2020 and later BMW 3 Series G80/G81 M3 & M3 Competition S58 3.0 Turbo (OPF/GPF Equipped Cars Only) including Touring & XDrive Models - 2021 and later BMW 4 Series G82 M4 & M4 Competition S58 3.0 Turbo (North American / ROW Non-OPF/GPF Cars Only) - 2020 and later BMW 4 Series G82 M4 & M4 Competition S58 3.0 Turbo (OPF/GPF Equipped Cars Only)