good luck to you man, the 2 piece manifold is for left hand drive cars, even if it was miraculously fitted, the flow will not make your engine healthy
FYI the 2.0,2.3,2.5 manifolds are all the same
only difference are the output flange of either 3 bolts to the newer 4 bolts
and if you think the chop shops say that 325i are diffirent, then by all meants its your choice, coz in the end of the day, they can charge you 50 to 100 because ........it is so rare to find.!....go figure
its only after the manifold the down pipes, center box pipes to the rear box are different for the 2.0,2.3,2.5
