Yes, most did, and that includes the Camaro, however, done right it would not be a problem. ;) Also if it has AC, the vent's purpose is different, and not directly vented to the interior, but ducted...

This ^^

You may need to tack on some bolts to existing sheet metal to give you an attachment point, or make some brackets that use existing fasteners for other things, like the heater box.

You...