They are OEM parts but they are not a complete set of "underbelly" panels.
The two parts (left and right) shown in the lower picture are the rubber parts that go in front of each wheel (underneath the bumper) called "strakes" or air dams.
The metal part is part of the under belly panels.
However, the two upper peices
are not the two plastic panels that go
underneath the car. In fact, they are the plastic panels that go in the inner wheel well (on the sides) are as shown here:
Honda Automotive Parts
They are numbers 11 and 16 (even the part price matches what is listed in the ebay ad).
The underneath plastic panels are number 12 and 17 for the typical reference to underbelly panels.
I am looking for a complete set of the metal and two plastic pieces that go underneath the car for my red Insight. Too bad this is not it...
JoeCVT = Just your average CVT owner