Milltek GPF Back Exhaust System - Audi RS3 (8Y) Saloon / Sedan System Option:Race System (SSXAU974) we've engineered our bushings using

we've engineered our bushings using an optimal formula and durometer polyurethane

-10AN ORB (O-Ring Boss) fittings for leak-free fitting connections

and average vs average dynos from both systems

the Mk4 Focus ST systems are TIG-welded from high-quality T304 stainless steel and the mandrel-bent pipework is a full 3in (76

CNC connecting flanges

Milltek GPF Back Exhaust System - Audi RS3 (8Y) Saloon / Sedan System Option:Race System (SSXAU974) we've engineered our bushings usingMilltek GPF Back Exhaust System Audi RS3 (8Y) Saloon Sedan Pipework Diameter: 3. 15" (80mm) Available As Resonated (Quietest), Non Resonated (Louder), Race (Loudest) New Valve Motors IncludedNotes: Not suitable for Sportback Models