RM Motors Downpipe AUDI RS4 B9, RS5 B9 Audi Rs5 from 829.04 €Downpipe AUDI RS4 B9, RS5 B92,9 TFSI2018-450 bhpQuattro Inlet diameter - 114 mm Outlet diameter - 76 mm Possible options for configuring the kit are listed below.Buy or view items