Wow so it is clear that you know nothing about racing, or about aerodynamics. Watch any kind of road racing you will see that what we have put together here is one of the most functional products you can find!! Hell take the 05-06, and now 08 viper for example, not only is it a flat bottom car, but its comes from the factory with a rear diffuser just like that one we have put together. As a mater of fact since we are a SRT/Viper shop in most aspects, you can say it is what inspired us to make this product available to other types of cars that otherwise have no aerodynamic support. But that’s fine you want to just call bull shit on go right a head. When you decided to pick up a book or open up google maybe you will learn something. Like I said this is something made for real racers, not for the haters that just want everything made out of shit and givin to them for free.