Car: Audi Type: TTS Typ 8S Coupe Engine: 2.0l 228kW Quattro (4WD) Part: Sport exhaust centered for L/R system (without tail pipes)with 2 integrated valves, incl. EC type approvalOriginal tube Ø 70 mm - REMUS tube Ø 70 mmThe activation of the valve is carried out using the original actuator via the vehicle onboard electronics.