blown cats?

[wshI_hd_1]

Hey,
I have a whole lot of white smoke blowing from the middle underneaths of my car. Thing is, is that i have cats on it, and thats where it looks like its comin from. Could it be a blown cat or something else?
thanks

 

[mustangsquared]

Tap on them (with your fist) if they rattle then they colasped...or take the X/H pipe off and shake it...again if it rattles they have come loose from the mountings.