What would those right mods be? I could see that might
possibly be useful on a serious track car, but I bet you that's not the target market. I'd trust it if it were from Nismo or some company that might have potentially done wind-tunnel tests to prove its advantage, but as it is, I doubt that spoiler would help performance for anyone who buys it.
Plus, it's ugly.
You know what I drive.
Pictures.