hey everyone, i have a little problem with my 4th gen camaro, every time i rev it to high rpms, or burnout, it makes a rattling sound. when i bought it the dual exhausts were crocked so i took it in a they fixed and welded the hangers and the exhaust. i don't know if it was making it before also. ill show u a video of what i mean.http://www.youtube.com/watch?v=S46NDZ7DZ0Q

 

sounds like a cat has or is going to pieces. you need to try and isolate the noise and find the general area its coming from.

 

what do you mean cat, or are you useing a figure of speech? lol

 

catalytic converter is what i was referring to. they get worn out and can fall apart and make noise and/or get plugged up or get in the muffler and make noise and plug it.