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 produced in the UK and distributed to over 90 countries worldwide. - Larger diameter than OEM for increased exhaust flow - Designed to enhance both performance and sound - Manufactured in the UK and distributed globally Specifications: - Pipe Diameter: 76.20 - Race Product: Yes - EMarked: No Kit comes with: - MSAU663: LH 76mm Primary Cat Bypass Downpipe (fits LH Turbo) - MSAU663 - MSAU664: RH 76mm Primary Cat Bypass Downpipe (fits RH Turbo) - MSAU664 - MSAU691: LH Secondary 100-CPSI Hi-Flow Sports Cat (under car) to OE System - MSAU691 - MSAU692: RH Secondary 100-CPSI Hi-Flow Sports Cat (under car) to OE System - MSAU692 Vehicle Compatibility: - Audi RS6 C7 4.0 TFSI biturbo quattro including Performance Edition 2013-2018 - Audi RS7 C7 Sportback 4.0 V8 TFSI biturbo including Performance Edition 2013-2018 - Audi S6 4.0 TFSI C7 quattro 2012-2018 - Audi S7 Sportback 4.0 TFSI quattro S tronic 2012-2018