Hello, got some advice a couple months ago, but after replacing several front axle and bearing assembly parts, it was back burnered. My exhaust sound like a marble is rolling around above the front exhaust pipe right above the gaskets which i replaced. I hope I can post a vid on here... Any advice is much appreciated, I value your time.

Would help to know what kind of car you have, and what gaskets you replaced before we start giving you any advice.

Upon replacing the gaskets, there may have been foreign objects that slipped into the pipe.

 

-Pieces of old gasket

-Dirt, maybe rocks

-Washers, perhaps

 

Also, be sure that it's a noise that truly is coming from inside the pipe.

As opposed to... The off chance of a hanger or other piece of pipe/fitting vibrating against something else.

 

Take the pipe off and beam a flashlight into the abyss.

Suppose that's the next step.

 

Best of luck.