The APR website has a nice collection of uhm, I'll be friendly. Ricer wings. None of those styles I have ever scene mounted on a Viper. Did they actually say the were made to fit a Viper also. By the looks of the pics on the website you might need some additional hardware to get down to some structural part of the rear of a Viper. Looks are decieving but those wings only look like you need 4 sheet metal screws to anchor it down on the trunk. Good for a car with a bunch of stickers and lets say a terminal velocity of no more than 80mph. On a Viper your going to need to anchor that more securely if you want it there more than one day. As a matter of fact I'd start drinking more beer now!!!