C&L upper plenum?

Okay this is the thing, I'm replacing my lower intake manifold because the water passover broke :nonono: and some guys are selling me some upper plenums for C&L: one is from a 2003 GT and the other from a 97GT. I remember something of the plenum having differences from SN95 and the newer stangs. Can some one help me out and tell me of the difference. :(
Oh yeah mine is a 99 GT 4r70w
 
BVille99GT said:
Okay this is the thing, I'm replacing my lower intake manifold because the water passover broke :nonono: and some guys are selling me some upper plenums for C&L: one is from a 2003 GT and the other from a 97GT. I remember something of the plenum having differences from SN95 and the newer stangs. Can some one help me out and tell me of the difference. :(
Oh yeah mine is a 99 GT 4r70w
I believe the 96 - 2001 are the same and the 02 - 04 are the same. I'm not 100% sure. Do a search on "plenums".