It's aftermarket.

Here's a crappy cameraphone pic I just took:

https://img406.imageshack.us/img406/2...rontlipub0.jpg

Close to stock, but I can see where it "scoops" air and creates downforce.

With that lip, you could use it if you don't have an OEM one handy. I'd personally block those holes on the sides as it's just letting air hit the front of the tires wich isn't as efficient as it could be.

For all you guys that did the bellypan with self-tapping screws:

How did you take care of, or is there, intrusion into the passenger compartment? I have enough choroplast to do the pan, I also now have a secondary ride so I'll be able to put her out of commision long enough to do the pan (spacing it out over a couple days).

Thanks for any input you can provide.

I think if you go down the center of the car you should be fine as well as intrustion goes. There is also the pinchy space on the sides that doesn't go directly to the cabin. *shrug*

There are reinforcements that run parallel to the exhaust tunnel that I screwed into for attachment points. The screws were no longer than 3/8" and the reinforcement was about 1/2" so there was no intrusion into the passenger cabin. Along the outside edges I used the existing holes from the side skirt attachments to sandwich and secure the coroplast.

Thanks for the quick replies!

I feel much better about doing this mod now - I've got 318k on this chassis (not as much as basjoos, but I might catch up! Well, eventually. :p ) and would like to keep it going.

I just made sure that they intruded in areas that were out of harms way - like under the seats . Also, I took full advantage of the frame and just drilled right into that.
( I hope I did not weaken it in any way . That would have been really dumb.)