$300 does seem steep for a no name wing. I bought a used APR GTU extruded aluminum wing for $60. Haven't mounted it to my junkyard trunk yet but the quality seems pretty good. Used name brand stuff pops up on egay and craigslist all the time, cheap.

http://www.aprperformance.com/images.../AS-105519.jpg

IMO if the car has a wing on it and it's on track it has a much higher badass factor. :D If you're going to mount it to the decklid, make sure you get the armature/legs is close to the trunk edge as possible to resist the downforce on the wing.

When I had the wing on my 99, the mounting bolts actually put holes in the rubber weather stripping...pretty sure there wasn't much flexing of the decklid :D

But yeah, i'll be checking measurements of anything I look at to get the mounts over a solid area.

So speaking of very inexpensive wings, I came across someone selling this for $60. Since i'm not racing on large tracks yet, I think it'll be just fine toutilize and add some downforce and stability. I'll probably make new uprights to get it up much higher into clean air.

For auto-x, i'll be going with Swarengen's setup, the APR GT-II with a few tweaks since i'm actually being competitive.

Is anyone aware of ANY pictures of a Miata in a wind tunnel with the smoke trails showing the air flow? (top up) I'm wondering if I can mount the wing I plan on using as more of an air deflector al la GT3 RS.

http://www.seriouswheels.com/pics-20...l-1024x768.jpg






and the $60 wing...

Here's a wind tunnel pic at 60 mph that I saved from a previous discussion.
And some other creative wing designs...

As I thought, it's going to take a wing at about the height of the top to catch "good" air (not to be confused with "clean air"). Which makes me wonder, if a wing were to redirect the air (as seen with the 911 picture), would it help clean up any of the aircoming off the top and down the trunk? I only can guess that since the upper flow of air isn't compressing the lower flow at the trunk lid and may allow it to flow smoother? :dunno:

such as this

They sell smoke sticks for aerodynamic testing in real world environments.