Downpipe DECAT BMW E39 M57

Tube diameter -2,5" (63mm)

Inlet diameter - 63mm

Pipe diameter at joint with centre section  51mm

Mounting flange: OEM

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 SS304 with a thicker wall (1.5 mm - competitive products have a wall of 1.2 mm which can crack or warp)

Downpipe for : 

BMW E39 M57,525D 530D, 1997-2003 ,2163,184,193hp