Sent you a PM. I don't think it will fit a 2012, Subthump's website has the Camaro sub enclosures broken up 2010-2011 and 2012 and up. Unless it's the ported box, which apparently fits 2010-2013.
"I'm a man who discovered the wheel, and built the Eiffel Tower out of metal and brawn! That's what kind of man I am." - Ron Burgundy
My build thread