Originally Posted by ///M Rakete
I wish that rear spoiler was maybe half the height, more than stock but not this high. IMO it's too tall. I don't care what BMW says about the aerodynamics as the stick Gurney flap already has a proven benefit. If I wanted a poke in my eye and the downforce to go with it then I'd get a wing.
You should take a look at the 3D Design trunk spoiler, in that case. It's made of carbon fiber, but it's only a hair taller than our OEM lip. Greg, one of our forum members, has one installed on his AW. You should search and check it out.