push some kind of rod that will fit down the piggy holes to determine if the original
owner drilled out your baffles... some people like that, but blegg, I hated it (mine came
that way)...
If it is just the piggys cut, you're in luck, MarkT can sell you some "piggy plates", left
over from his exhaust modifications...

If your piggy stubs are long enough, you can extend your piggys back out with
copper plumbing pipes and fittings, people say they're just the right size and work well...
-Mike