The fiberglass should not be loose - it should be packed fairly tight. If it is loose it probably means it has degraded further in. When that happens it breaks down into small bits and gets blown out the exhaust pipe leaving room for the remaining bits to move around.

Quote:

... Will check into replacing them...



You don't need to replace the pipes - just the fiberglass inside probably needs replacing.

Last edited by foglefar; 04/18/2011 6:25 PM.
Cheers, Richard
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09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge