If you are going to shop for an explorer intake, here's what to look for. You ideally want to try and snag an early EGR version. Here's how to tell on the upper intakes
If you flip the upper over, you'll see one has a small port in the center for the EGR, and one has a void. The void is the later, non-EGR version
For the lower intake, there are two versions that come with the explorer. This one below is the later, non-EGR version, and as you can see there is no port in the center of the lower intake for the EGR
You can also check the part number located right behind the distributor.
RF-F87E-9K461-BA (Egr version that also has ACT boss)
RF-F87E-9K461-BB (non-EGR version without ACT boss)
Basically look at the end prefix. Try to find a -BA intake
If you flip the upper over, you'll see one has a small port in the center for the EGR, and one has a void. The void is the later, non-EGR version
For the lower intake, there are two versions that come with the explorer. This one below is the later, non-EGR version, and as you can see there is no port in the center of the lower intake for the EGR
You can also check the part number located right behind the distributor.
RF-F87E-9K461-BA (Egr version that also has ACT boss)
RF-F87E-9K461-BB (non-EGR version without ACT boss)
Basically look at the end prefix. Try to find a -BA intake