Explorer Lower Intake?

They are all about the same.

I thought I saw a post were it was thought the diff. was due to casting variance and that it is actually more of all can flow more than one or the other or less than others. Prob. not that much diff. from lower to lower.

With the upper and lower off an exploder and going with a fox t-body, you need to make sure you run the one that has the EGR pass. in the upper and lower. If you use the stock style 94-95 t-body and an elbow you can use either one as the 94-95 uses an external EGR setup.