For use with EC approved cat-back systems that utilize the MSSE152 front silencer. Milltek Sport Large-Bore Downpipes are designed to improve both performance and sound. These downpipes feature a larger diameter than standard OEM parts, allowing more exhaust gas to exit the engine and pass through, increasing efficiency. When combined with the Hi-Flow Sports Cat, a significant increase in performance and a noticeable change in sound can be expected. Stage 2 ECU remap is required. - Larger diameter than OEM for increased gas flow - Designed for use with MSSE152 front silencer - EC approved for road use Specifications: - Pipe Diameter: 76.20 - Race Product: No - EMarked: Yes - EMark Number: ecedownpipe Kit comes with: - Large-bore Downpipe and 200-CPSI Hi-flow Sports Catalyst (EC-Approved) - MSAU623 - Adapter for ECE Downpipe & MSSE152 - MSVAG08 Vehicle Compatibility: - Seat / Cupra Leon ST Cupra 300 (4x4) Estate / Station Wagon / Combi (Non-OPF/GPF) 2017-2018 - Volkswagen Golf MK7 R Estate / Variant 2.0 TSI 300PS 2015-2017 - Volkswagen Golf Mk7.5 R Estate / Variant 2.0 TSI 310PS (Non-GPF Equipped Models Only) 2018-2019