Who told you "no" about what? If they told you no because you're talking about a Valk, they just didn't know that we've been doing it for years.
The '06 & later spoilers are different, but I think it's just a styling issue, and the spoiler you're interested in will fit just fine. However, by the time you get it painted, the OEM ones may be about the same price.
In the PIC in the above post of my Interstate, I picked a color that was very close to the Interstate accent color, and no one has ever commented. I would have preferred to go with the green, but no 1800 Wings ever came in that color.
I just installed the new style spoiler on my new Wing, but I think the old style spoiler would fit it just fine also, except it isn't available in pearl white.
