I picked up an Ebay under engine cover and the guard just in front of it. My originals were a bit dinged up when I got it. I was a bit worried when both arrived all rolled up tight. I put them out in the sun with some weight on them and they flatted out pretty well. The new belly pan looks lighter - the ribs are not as pronounced. (see pic). The guard that goes in front of the pan and behind the chin scoop looked better quality and came with the two wind scoops. Installation was pretty straight forward. When the old ones came down there was a LOT of dead grasshoppers, dragonflies, etc in the outer portion of the chin scoop.
WOW! That looks like many years of debris accumulation! Have to wonder when the oil was last changed?
I replaced mine, too, about a year ago. Here’s the story: https://www.challengerforum.com/threads/any-experts-out-there-who-can-verify-a-part-number.9309/ I, too, got an aftermarket one from eBay that came all rolled up. It worked just fine. I only replaced the one behind the air dam. I did not replace the belly pan that you remove to do an oil change.
The bugs were actually in the far outer corners of the chin spoiler. Probably sucked into the air scoops.
I am confused by your description. The belly pan that is removed for oil changes is the second one, located towards the rear of the car. The other one, that is not removed, is located towards the front of the car.,
I guess it depends on which end you start counting at, lol. Counting from the order you remove them the oil change belly pan is #1.
