Car: Audi Type: RS7 Typ 4G Sportback Engine: 4,0l 412kW Quattro (4WD) Part: Sport exhausts left and right, fits within the original exhaust outlets, with integrated valves, incl. EC type approval Original tube Ø 60 mm - REMUS tube Ø 65 mm The supplied actuators activate the valves via the vehicle onboard electronics.