Milltek Hi-Flow Sports Cat Downpipe | Audi

Description

High-flow primary downpipe with integrated sports catalyst and turbo elbow, engineered to reduce backpressure and improve turbo spool response. The lower-density sports catalyst allows exhaust gases to flow more effectively than OEM, while the wide-diameter turbo outlet accelerates boost delivery and throttle response. Direct OEM fitment; compatible with both Milltek and OE cat-back systems. Technical Specification: • T304L stainless steel construction, mandrel-bent primary pipe • Hi-Flow sports catalyst with low restriction core • Integrated turbo elbow for optimized turbo connection • Stage 2+ ECU remap required for full calibration • OEM hangers and fitment points preservedMilltek downpipes are engineered for forced-induction platforms where boost response and mid-range spool are critical. This system pairs seamlessly with Milltek cat-back configurations or factory rear sections, making it an ideal foundation for incremental turbo upgrades. Fits Milltek Cat-Back. Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.