In case you guys weren't aware of the fact that Factory RS optioned cars will have the decklid already pre-drilled from the factory,so if you want to add the spoiler to a non-RS equiped Camaro,you will have to drill holes in the decklid...or,buy a pre-drilled decklid from the parts department then have it painted and installed.Your looking at about $700-$800(decklid,paint,labor)
It's too bad GM decided to arrange the options the way they did.I just wanted a spoiler on my 1 LT Camaro,and 20" polished rims.Instead of $650 worth of options,it cost me $1,750

Hopefully GM in the future will make the spoiler a seperate option,and the 20" wheels.I think they would sell alot more Camaro's that way