Scope of delivery: - Cat replacement pipe for Audi A4 B8 8K A5 Q5 2.0TFSI plug and play ø 76mm stainless steel*Description: - the cat replacement pipe is simply replaced 1:1 with the old cat (plug and play). The two connections for the lambda sensors are welded in and sealed with a screw plug. The flange surfaces are planned. - the catalytic converter sensor must be programmed out, otherwise the red light will come on.We would like to point out that the installation of this article constitutes a modification which invalidates the vehicle's operating license in accordance with the StVZO. Not permitted for use on public roads.suitable for: - Audi A4 B8 2.0TFSI - Audi A5 8T3 2.0TFSI - Audi A5 Sportback 8TA 2.0TFSI - Q5 8R