RS5

REDSTAR EXHAUST Downpipes for the Audi B9 RS5 and F5 RS4 equipped with the Porsche-derived 2.9L engine are engineered for maximum exhaust flow and efficiency. Featuring a large-bore design with smooth, optimized transitions, these downpipes use extended cones to reduce the OEM 127mm turbo outlets to an 89mm main section, followed by a secondary transition...