...From the 6thGen convertible forum....(standard on convertibles)...
http://www.camaro6.com/forums/showth...ht=tower+brace
Put one on your coupe, if you want....but it's not "needed".
This brace will not fit on the ZL1....Here's a thread discussing the tower brace for ZL1s...:
http://www.camaro6.com/forums/showth...ht=tower+brace