Milltek Sport Large-Bore Downpipes are designed to improve both performance and sound. These downpipes feature a larger diameter compared to standard OEM parts, allowing more exhaust gas to exit the engine and pass through, which increases efficiency. When combined with the Hi-Flow Sports Cat, a significant increase in performance and a noticeable change in sound can be expected. All Milltek Sport performance exhaust systems are developed for a wide range of vehicles and are manufactured in the UK. - Larger diameter than OEM for improved gas flow - Designed to enhance both performance and sound - Manufactured in the UK and distributed globally Specifications: - Pipe Diameter: 80.00 - Installation Time: 3.5 to 4.5 hours (including removal of OE system) - Race Product: Yes - EMarked: No Kit comes with: - MSAU757: Heat Wrapped 200CPSI Cat Downpipe with OPF Bypass (LH) - MSAU758: Heat Wrapped 200CPSI Cat Downpipe with OPF Bypass (RH) - MSAU759: LH Connecting Pipe (To Milltek OPF Back System) - MSAU760: RH Connecting Pipe (To Milltek OPF Back System) Vehicle Compatibility: - 2019 and later Audi RS6 C8 4.0 V8 bi-turbo Performance Edition (OPF/GPF Models) - 2019 and later Audi RS7 C8 4.0 V8 bi-turbo (OPF/GPF Models) - 2020 and later Audi S8 D5 4.0 TFSI V8 Saloon / Sedan (OPF/GPF UK/Euro Models)