When catalytic conveters go bad, sometimes they burn up and the internal grid crumbles into chunks. These chunks can travel down the exhaust pipe and clog up the downstream cats and/or the muffler and/or the pipes themselves.
When catalytic conveters go bad, sometimes they burn up and the internal grid crumbles into chunks. These chunks can travel down the exhaust pipe and clog up the downstream cats and/or the muffler and/or the pipes themselves.