After a few minuetes of driving, I can start to hear a squealing that sounds as if its from the passenger-side-exhaust. If i free rev it, it happens as well. If im idle for awhile, it will go away but promptly come back.
Any inputs of weather it may be something else, or advice on the removal process of the heatsheild, and or DIY quick fix?

 

I had the headshields removed on my last visit to the dealer. If you have ramps at home, then put your car on ramps, go underneath and have someone else rev it. It will be easier to find out where the rattle is coming from. I had a screw driver with me and it was easy to determine that it was the head shields, once I pressed the screw driver on the head shield the rattle stopped. Mine were coming apart because of rust.