interesting
they look very similar to the stock parts, but I am not sure they are, they look a little bit different. from that pic its hard to tell
What I am wondering is if Dorman made the manifolds for Ford or something
There are two basic types of factory manifolds for the 96-97.5 and 97.5-01 explorer 5.0L V8
the cast and the welded
both are crappy performance wise
both are crappy construction wise, although the cast seem to work better.
In 97.5 the 5.0L enging got the P heads, the non p head manifolds (96-97.5) will not work on the later P headed engines and vise versa
Ford Motor Sports made a explorer 5.0L "performance" manifold for a while, it was still questionable, big time
Torque Monster Headers is the only game in town for a bolt on header for your Explorer 5.0L that will actually free up some of those factory restricted ponies AND get rid of all your bad factory constriction /leak issues.
try searching around, it is discussed often here.
If you own a 5.0L explorer chances are your exhaust leaks, leaked, or is about to leak