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 used with the Catalyst Bypass Pipe, significant power gains can be achieved without restriction on gas flow from a catalyst. 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 for increased efficiency and performance - Compatible with Catalyst Bypass Pipe for significant power gains - Manufactured in the UK Specifications: - Pipe Diameter: 63.50 mm - Installation Time: 1 to 1.5 hours (including removal of OE system) - Race Product: Yes - EMarked: No Vehicle Compatibility: - 2019 and later Audi A6 55 TFSI (3.0 V6 Turbo) C8 - 2019 and later Audi A7 55 TFSI (3.0 V6 Turbo) C8 - 2016 and later Audi S4 3.0 Turbo V6 B9 Saloon/Sedan & Avant (Non Sport Diff Models) Left Hand Drive - 2016 and later Audi S4 3.0 Turbo V6 B9 Saloon/Sedan & Avant (Non Sport Diff Models) Right Hand Drive - 2016 and later Audi S4 3.0 Turbo V6 B9 Saloon/Sedan & Avant (Sport Diff Models Only & Without Brace Bars) Left Hand Drive - 2016 and later Audi S4 3.0 Turbo V6 B9 Saloon/Sedan & Avant (Sport Diff Models Only & Without Brace Bars) Right Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & WITH Brace Bars) Left Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & WITH Brace Bars) Right Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & Without Brace Bars) Left Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Coupe Only B9 (Sport Diff Models Only & Without Brace Bars) Right Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) Left Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Coupe/Cabrio B9 (Non Sport Diff Models Only) Right Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Sportback B9 (Non Sport Diff Models Only) Left Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Sportback B9 (Non Sport Diff Models Only) Right Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & WITH Brace Bars) Left Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & WITH Brace Bars) Right Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & without Brace Bars) Left Hand Drive - 2017 and later Audi S5 3.0 V6 Turbo Sportback B9 (Sport Diff Models Only & without Brace Bars) Right Hand Drive