if u have not bought it yet don't bother, just stock with the stock one, it works right? i can't imagine a small spring making THAT much difference but think of the potential harm it could cause if it's not all that it's hyped up to be?
i have a 2010 cobalt lt sport with spoiler on it already what other spoilers would fit in the same holes? want something little bigger then factory but that will fit in same holes.
well i dont have same car as you i have 2010 cobalt lt its the sports package with spoiler so if i buy the same spoiler you have. will fit in my holes i already have those taillights dont go to my car mine are diff i just have two tail lights