Exhaust "leak"? Power loss...
Anyways (understand that I don't know much about cars), today I noticed while inspecting the exhaust (was told by a mechanic it may be a catalytic converter, that's why I was looking) I noticed what appeared to be a "leak" in the exhaust. Not a liquid leak, but the temp was low enough outside that the heat from the exhaust allowed me to see where the air was coming from (hot/cold air condensation).
The "leak" was coming from a large kind of ovular shaped piece under the car about where the rear seats are located. Is this where the catalytic converter is? If not what is causing this leak? Is this leak a problem and might it be causing my power loss?
Sorry for the long post, but I suck with cars and am very anxious to learn more about them and maintaining/modifying them. Thanks for any help, this forum is great!
Also, I've had this problem since I bought the car last year, but forgot to ever mention it. In the rear under the car (around or at the "suitcase"), there is a buzzing noise. It sounds more like an electronic buzz rather than a mechanical noise though. What exactly is the "suitcase" for and what does this buzzing mean?






