DeutschTuning proudly offers Eventuri Black Carbon Intake System Audi B9 S5/S4 2017-2023. The Audi B9 S4/S5 Eventuri intake was developed to give less restrictive airflow to the turbo whilst maintaining low inlet temperatures. The S5/S4 engine bay becomes heat soaked very quickly so simply having an open cone system would result in better airflow but with higher inlet temperatures. We therefore completely re-engineered the inlet track from the turbo inlet pipe to the front grill with a highly efficient sealed system. The restrictive stock airbox and flexible plastic inlet pipe have been replaced with a Venturi filter housing and a duct system with smooth transitions. Furthermore, by removing the convoluted stock inlet pipe and replacing it with our one-piece Venturi housing and solid tube, the airflow is much smoother as it enters the turbo inlet tube. The resulting performance gains and aesthetics are industry leading for this platform.The B9 S4/S5 Eventuri system uses our Patent Pending Carbon fibre Housings with our bespoke Gen-2 filter which provide an aerodynamically efficient airflow path from the filter to the inlet tubes. Not just another cone filter with a heat shield but a unique design which invokes the Venturi affect. Carbon Fiber Venturi housing with intergated tube. High Flow Generation 2 Filter. Carbon Fiber Intake Duct. Carbon Fiber Front Scoop. High Quality Silicon Couplers and OEM Spec Hose Clamps. Laser Cut Stainless Steel Bracket Work. CNC Machined Mounting StubsInstallation Guide.