Downpipe for Audi TTRS 8J / RS3 8P without catalyst converter � Diameter of 90mm to 2x 70mm � Weight 4,6Kg � High-quality stainless steel 1.4301 (SS304) � CAD-Designed and optimised � 1 Oxygen Sensor Connection � 100% oem fit, easy to replace factory part � No Precat so less thermal load for the turbocharger � Better performance by reducing back pressure � Significantly higher torque � Suitable for Audi RS3 8P and Audi TTRS 8J (except cars equiped withh a cardan shaft 8J0521101AB) May not be approved for road use in your region.