CTS Turbo 2018+ B9 Audi S4/S5 V6T 3.0T (EA839) Test Pipe

The CTS Turbo test pipe is engineered specifically for 2018-2021 B9 Audi S4 and S5 models equipped with the 3.0-litre V6 turbo EA839 engine. This direct replacement component removes the factory catalytic converter to significantly reduce exhaust restriction and backpressure. Designed for vehicles operating in motorsport or off-road environments where emissions compliance is not required, it delivers improved exhaust gas flow and enhanced throttle response. Precision-manufactured from high-grade materials with factory-style flanges for straightforward installation into the OEM downpipe location.