I'm sitting here waiting for my Magnaflow 16612 to come for my FX4 CrewCab 6.5" Bed and got anxious enough to just undo the connecting pipe from the muffler to the Y-Pipe. Talk about some SERIOUS Rice Crispies action!
http://www.meahwow.com/snap.wmv

Then I took it for a spin, not nearly as loud, or bad sounding as I thought it would be...
http://www.meahwow.com/windowsup.wmv

 

Linky no worky

 

Weird, I just tested both of them and they worked for me??

 

works for me and it sounds awesome.