Exhaust Noise

[MistorOrange]

I've had this exhaust noise/rattle for awhile now just around 2500 rpm, took to muffler shop, he said didn't know where it was coming from, I figured it was heat shield, but he wouldn't do anything about it said "too dangerous" lol i've had them cut off before, but oh well. Here is a video clip of the noise, excuse the audio quality, anyone know where could be coming from? Thanks for any help.

 

[xxBLOOD88SHOTxx]

You have a crack somewhere and most likely a loose shield somewhere. Take it to a real muffler shop, and tell the other one they are a bunch of dumb f**ks.