Will the sedan, coupe, and SS rear wings interchange?
Meaning, do all have the same bolt patterns?

 

my lil bro has the LS, we put the SS wing on no prob, so i'd say yea.

 

If you mean can you take the high mount aero wing off and put the low profile wing on, then I believe the answer is yes. There are a few users on here who have done that, and if I am not mistaken, the holes drilled in the trunk for both wings are the same. The SS/SC wing has a fair bit of adhesive tape that is supposed to be a pain in the butt to get off, but otherwise it works!

See this thread for more info: https://www.cobaltss.net/forums/show...highlight=Wing

Maybe you can PM one of them to ask if I am right?

 

Coupe Wing will not fit sedan and vise versa

 

How come the sedan and coupe spoilers are not interchangable?

 

different shape trunk