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 downpipes for improved gas flow - Designed to enhance both performance and sound - Manufactured in the UK and distributed globally Specifications: - Pipe Diameter: 0.00 - Fitment Time: 2 to 2.5 hours (including removing OE system) - Race Product: Yes - EMarked: No Vehicle Compatibility: - 2016 and later Audi A4 2.0 TFSI B9 Quattro Saloon & Avant (Non OPF/GPF Models including Mild Hybrid & Without Brace Bars)