7.5.5 Any rear spoiler/wing that fits the following criteria may be used:
1. A vertical line from every point on the spoiler/wing and end plates must intersect the car
body/bumper cover when the car is on a level surface.
2. The maximum height of any point on the spoiler/wing from any point on the deck lid/rear
hatch may not be greater than 12.0 inches.
3. The overall depth (leading edge to trailing edge) including end plates may not be more than
12.0 inches.
4. The spoiler/wing and mounts as installed must be readily available to the public from a retail
source for less than $700.
5. The wing must be fixed for competition and may not be adjusted from the driver’s seat


My question is, the stock hatch has a "spoiler" on it already, it contains a brake light and it attached by five hundred (it seems like) studs into the hatch. Does the 12 inch rule include that stock spoiler?
http://1.cdn.lib.americanmuscle.com/...tang-lx-03.jpg

Also, based on the wording, that height number does NOT include the end plates, just the spoiler/wing, just wanted to make sure that was the case. So the wing can be 12in, the end plates may go up higher than that and still be legal.