High-quality downpipe for BMW E60, E61 525d, 530d pre-facelift models with M57N (M57TU) engine. Exclusively crafted by KPerformance, our full 3″ (76mm) downpipe maintains a bolt-on fitment while maximizing exhaust flow and minimizing backpressure, resulting in sharper throttle response, increased performance, and a deeper, more aggressive exhaust tone. Designed for vehicles with the Euro 4 emission standard (produced from 2004 onward), which are equipped with a separate Diesel Particulate Filter (DPF) and an electronic turbo actuator. Important: While all 525d models are Euro 4, early 530d models from 2003–2004 can be either Euro 3 or Euro 4. Keep in mind that Euro 3 models with a vacuum-operated turbo actuator do not have a DPF and therefore require a different downpipe. Please verify your car’s emission standard before ordering, or contact us if you’re unsure. FITS THESE BMW MODELS: BMW 5 Series: E60, E61 [2004-2007] 525d (130kw / 177hp) – M57N 530d (160kw / 218hp) – M57N 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: • Direct bolt-on fitment • Stainless steel (SS304, 1.5mm) • Replaces OEM Catalytic converter • Downpipe diameter: 3″ (76mm) • Connection to exhaust (stock): 2.55″ (65mm) • One socket for lambda (oxygen) sensor • One socket for temperature (EGT) sensor • One pipe for the pressure sensor hose OE reference numbers: 18 30 7 796 617, 18307796617, 7796617, 18 30 7 792 190, 18307792190, 7792190, 18 30 4 708 697, 18304708697, 4708697