ok thanx guys, i was told that there was ceramic on the inside and it probably broke, but i didnt think it sound like that, it sounds more like metal, and i thought it was the shield around it. and i was right.

so if i just take it off, it will be fine, no need to buy a new one? and if i were to buy a new one, would it improve performance, make exhaust louder, or nothing at all? thanx