High-quality downpipe for BMW X5 F15, X6 F16 30dX, 35dX, 40dX with N57N, N57Z engine. Important: This downpipe is designed to fit cars with Euro 6 emission standard. We also have Euro 5 version, so please verify your car’s emission standard before buying or send us your VIN code, and we will check it for you. FITS THESE BMW MODELS: BMW X5 F15 [2014-2018]  30dX (190kw / 258hp) – N57N 35dX (190kw / 258hp) – N57N 40dX (230kw / 313hp) – N57Z BMW X6 F16 [2014-2019] 30dX (190kw / 258hp) – N57N 40dX (230kw / 313hp) – N57Z Note: If your model is not listed here, look for it under another product. If you cannot find your model anywhere, contact us for assistance. SPECIFICATION: • Quality stainless steel (SS304) • Downpipe diameter: 3″ (76mm) • Flange to turbine diameter: 105mm • Connection to exhaust (stock): 70mm • Two sockets for lambda (oxygen) sensors • Two sockets for temperature (EGT) sensors • Two pipes for the pressure sensor hoses OE reference numbers: 18 30 8 571 007, 18308571007, 8571007, 18 30 8 571 006, 18308571006, 8571006, 18 30 8 571 820, 18308571820, 8571820, 18 30 8 571 822, 18308571822, 8571822