Pontiac Firebird 1967-2002 - Firebird Ticking

I didn't know where to post this so I'm putting it here?

It's a 1997 Firebird 3.8L with 138k miles, new tune-up, new oil-change. It has a ticking noise. Here's a video. Exhaust leak? Thanks!

http://www.youtube.com/watch?v=Fkny9arUOUQ

Don't everyone jump in at once :/

Here's another video...

http://www.youtube.com/watch?v=Z0mZ-keRaC0

sounds like an exhaust leak ....

exhaust leak possible manifold gasket?

Ok thanks, it's gonna be a bitch to get that exhaust manifold off, the bolts are rusted fast.

A little heat and some PB Blaster or liquid wrench and you got it.