So I am getting my bike ready for riding this weekend and I accidentally knock my exhaust with my hand and I hear a rattling noise. I look inside and the spark arrestor collar is loose. I took the end cap off and I found the spark arrestor collar but no spark arrestor. I took my entire exhaust off and its no where to be found. Could it have come loose and blown out? I know its just a screen, but I have never heard of this before.