Car: Audi Type: RS6 Typ 4G Avant 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. material: approval: EC approval Part no: 0480150500LR