Milltek Audi S3 2.0TFSI Quattro Saloon/Sedan 310PS & 333PS 8Y (OPF/GPF Models Only) (2020-2026) SSXVW664 Large-bore Downpipe and De-cat 94mm / 3.7inch ID Turbo Outlet to 80mm / 3.15inch Downpipe with Decat/OPF Bypass - Fits with OE System Only 94mm 3,7"