I meant Roadrunner's Yaris.

Quick "in progress" shot since I'm home taking care of my sick girls today and didn't get it all finished yet:
https://img34.imageshack.us/img34/7818/dsc01496v.jpg

I still have four more brackets to make and to coat the lip in black Plasti-Dip for rock chip protection.

The lip material is called FiberEdge and the brackets are made from 1/8" thick x 1" aluminum flat stock that I measured drilled and bent.

Daylight shot of the fabrication part done, still need to paint it black.
https://img2.imageshack.us/img2/5150/vxairdamday.jpg

What is your lower lip made from? Going to be doing this sort of thing to my festiva gokart soon.

what about scraping/bottoming out?

when I extended my airdam, I scraped on just about everything. I ended up trimming it back twice before I was alright with it.

any problems so far?

Lower lip is made from FiberEdge garden edging, aka fiberglass and duraflex gel.

It does scrape but I've had a low dam like that for so long now that I'm used to where is scrapes and avoid those areas.

I've nicked it once yesterday, but the way I have the brackets set it allows for some flexing.

when mine would scrape, it sounded like the front end coming off of the car.

I never did get used to it. after trimming it several times, it doesn't scrape anymore though it is only an inch (at the most) longer than factory.

it all looks really good. my wife asked why I couldn't do that to my car.

Now that you mention it...why not have it spring-loaded, like a snowplow's trip edge?

End view of such a plow:

https://www.snowplowsupply.com/images...eltripedge.gif

I had a thread on that very notion. I was also thinking it could be made in sections so they could be replaced individually easier if needed.

Heh...my memory sucks, but I see that I had the same solution to the same problem.