Exhaust Turbo Manifold & Gaskets Nut Stud Bolt for BMW X5 E53 E46 E60 3.0D M57NExhaust Turbo Manifold & Gaskets Nut Stud Bolt For BMW X5 E53 E46 E60 3. 0D M57N Cast Iron Block The factory manifold is prone to cracking and is made out of 2 halves welded together. NOTE : This manifold does not suit the M57N2 Alloy Block Application: For BMW 525D, 530D, M57, M57N, 218BHP, 177 BHP, 164BHP (1998 2002, 2003 2007) E60, E61, E65, E53, X3, E46, E38, E39 3, 5, 7 Series, X3, X5 Series 3 Series E46 1998 2006 3 Series E46, 330d, Sedan, M57,