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 to ensure durability in harsh conditions. The range is developed for a wide variety of vehicles, with ongoing research and development to meet performance exhaust requirements. - Direct replacement for the original exhaust system - Available in multiple configurations for sound and tone customization - Manufactured from 304L aircraft grade stainless steel - Designed for durability in harsh conditions Specifications: - Pipe Diameter: 80.00 - Installation Time: 3 to 4 hours (including removal of OE system) - Race Product: Yes - EMarked: No Kit comes with: - F5159: Adapter to OE System - MSBM363: LH Connecting Pipe - MSBM364: RH Connecting Pipe - MSBM365: Rear Silencer - MSBM366: LH Valved Outlet Pipe - MSBM367: RH Valved Outlet Pipe - MSBM368: Inner Outlet Pipes - MSBM371: Active Centre Section - MSTIP226: Carbon Fibre Jet (round) 100 Exhaust Tip, Standard - MSTIP226 - MSBM403: RH OPF Bypass - MSBM402: LH OPF Bypass Vehicle Compatibility: - 2021 and later BMW 5 Series M5 & M5 Competition 4.4l Twin Turbo F90 LCI (OPF/GPF Equipped Cars)