Yeah, it sucks so hard they aren't mass producing the ZL575 spoiler. I really did try to like the one they're mass producing shown on the blue car but... it just doesn't stack up.
A good alternative is this spoiler by Carbon Creations @ SEMA:
It's very similar to the ZL575 spoiler except just a tad shorter - on the bright side, the corners are more pronounced. I e-mailed them and asked if they're producing it and have yet to receive a response.