muffler weep hole

The weep hole is there to get rid of moisture either liquid or steam (once the exhaust gets hot, They help the mufflers last longer. Most of the cheaper mufflers don't have them.(the manufacturers probably don't want them to last). I allwats drill a small hole in the lower back end of my mufflers if they don't come with a hole. Don't want them to rust from the inside out.
toolman