just from what i've heard, but thos kits on ebay are really sheap knoc-offs, they wil probabaly casue more trouble then they are worth, meaning you may have to do alot of extra work to get them to fit AND look decent.
just what i've heard tho.
also i have have a spyder kit, and i hated the second hole for the dual mufflers, so we just went and patched the hole on the kit, and it looks awesome, if you're getting the kit professionaly installed then your bodywork man should have experience with fiberglass and it's an easy job to just pacth the hole.
i actually have a picture of mine, i'll post it up.