Exhaust Rattling - Sport Exhaust

[mpikounis]

When I set the sport exhaust to its "quiet" mode, every time I accelerate between 900 and 1200 rps I hear this horrible rattling. I am almost certain it originates from the right side. I tried putting my foot on the exhaust and slightly push toward the center of the car and the rattling stops. If I push the other way (toward the right side) the rattling increases.

Is there some kind of metal shield on the outer part of the exhaust that could be causing this? Would this be on the rear bumper?

[Loren]

There is a heat shield and their are clamps. If the heat shield is not touching the muffler and the clamps/mounts are tight - then you likely have a broken weld inside the muffler.

[mpikounis]

I had a brief look but I cannot tell if there is something wrong. Should I remove the rear bumber or the exhaust to check?

If it is a broken weld inside, why would it stop rattling when I push it towards the center of the car, and increase rattling when I push it outwards? I am almost certain it is the heat shield, I just don't know how to find which part!

[Loren]

You should not need to remove anything.

See the foil like heat shields on Orient Express's car... make sure those are not touching the muffler or so close that they will touch when hot.