how to check for exhaust leaks??

[slideways2004]

i think have an exhaust leak. On my s14 sr, I have this ticking sound coming from the exhaust manifold area. My motor came with a turbo mani (looks like megan) and i'm afraid that has cracked or it could be something as simple as a gasket (not simple to change). How can i pinpoint if i have an exhaust leak and where it's coming from? seafoam and look for the white smoke?

[ledzeppelin240]

Stethescope or a piece of hose and put it to your ear and listen till you find the leak. You could also feel around for the exhaust pulses on your hand....