Hey so I have a hooker catback with no cat and for some reason my catback sounds like it has marbles in it every time I shift and at certain rpms when I WOT. I mean it sounds nice and throaty at idle and when cruising, but it sometimes makes a high pitch rattling noise that sounds super tacky and cheap.

It only has about 2,000 miles on it and i have checked everything (hangers, clamps). Do any of your guys cars sound like that or is it just normal?

 

Is there a certain area of the car the noise is coming from, or is it coming from the muffler itself?