I know they all came with the round holes one on each side but the hole i'm talking is the oval one on the passenger side where the silencer goes..
The nose is an '83/'84, the rear looks to be an '82 GT, the interior is an '87-'89, and the hood ... who knows? Wow. Talk about a Frankenstang.
+1 it does look like a piece. hey ain't nothin wrong with frankenstang's lol, mine's an 87 body with a 91 motor and 89 interior not to mention 4 cyl to 5.0 conversion