Milltek Large Bore Downpipe and Hi-Flow Sports Cat for Audi S3 8Y, VW Tiguan R, T-Roc R, and Mk8 Golf R

94mm / 3.7inch ID Turbo Outlet to 80mm / 3.15inch Downpipe with 200CPSI HJS Cat, includes OPF/GPF Bypass – Fits with OE OPF/GPF Back System Only