the explorer lower is almost exactly the same as the GT40 lower, except you will have to drill and tap a hole in the #5 runner for the ACT (air charge temp sensor), no big deal at all. The upper is quite a bit different than the GT40, but is close to a Cobra intake inside. Box stock, it flows just a tad less than the GT40/Cobra intake due to small differences in the upper, but with a little porting, the explorer is a GREAT intake for the money.
Here's a picture of mine so you know what to look for.
It sure is an ugly thing compared to the GT40 and the Cobra
