Whats wrong with my exhaust!?

[pHatSI07]

I've noticed that whenever it rains hardout, there is a vibrating thump noise that comes from my exhaust. I can even feel it on the floor. I have a tanabe racing medellion exhaust, anybody know whats wrong and what i should do about it?

[andy]

This is a common problem.
You can do a search on something like "exhaust and rain" to see more
threads about it.
Basically, the hot exhaust hits the cooler water and just vibrates all
to hell. It sounds horrible, but I don't think it's that harmful (it
only seems to happen to me in heavy, heavy rain when the roads are very wet
and water is kicking up underneath the car. Even then, if I just let
of the gas for a moment, it stops).

[PAPITUYO326]

omg u guys just described last week for me....i posted on it but didnt get a solid response....good to know that it isnt harmful

[pHatSI07]

thanks for the response, i thought something was wrong.