Downpipe BMW E60 E90 330D 325D 530D M57N2 DECAT Tube diameter -3" (76mm) Inlet diameter - 73mm Pipe diameter at joint with centre section 2,5" (63mm) Mounting flange: V-BAND The downpipe is equipped with the following connections: - one socket for the lambda probe - two sockets for temperature sensor Used to replace a factory fitted DPF and after its installation exhaust system is unblocked and that noticeably improves the "bottom" of the engine. The so-called turbo hole effect disappears and power and torque increases. Compare to similar products, our downpipes are made of high-grade stainless steel SS201 with a thicker wall (1.5 mm - competitive products have a wall of 1.2 mm which can crack or warp) Downpipe for : BMW E90 325D BMW E90 330D BMW E60 530D