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93 Exhaust Manifold Changeover


locovaca

Well-Known Member
Joined
Jan 26, 2008
Messages
707
City
DeWitt, IA
Vehicle Year
1993
Transmission
Manual
Does anyone know what the difference between the early 93 exhaust manifolds (which fit 91-93) and the late 93 exhaust manifolds (which fit 93-96) are? I'm looking at the pics at Rock Auto and they look identical to me. I have a late 93 by the manifold dates (after 4/5/93 is considered late, mine is 5/93) and I know they added the EGR for 94 MTs, but I don't have one so it can't be that.

Early 93 left:
674-361-007.jpg

Late 93 left:
101209.jpg


Early 93 Right:

674-408-007.jpg


Late 93 Right:

674-410-007.jpg


The late 93 right is an ATP brand (thus the different image style) and the rest are Dormans. The different gasket style on the late 93 right is interesting even though Felpro uses the same style gasket for 91-95 and then a different style starting in 96, not sure why it would change over like that if the same manifolds were used.

Any thoughts?
 

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