> I have to replace my connector pipe between 2 manifolds. Expensive. A
> mechanic suggested this may have been caused by the catalyic convertor
> getting plugged, and not letting the exhaust through the pipes as quick as
> it should. Does this make sense. There was some dimpling on the "middle"
> muffler, and this is apparently a sign of heat not flowing properly. Thank
> you for your reply. Pete