A member , Indika666, posted the following info on a different thread:
I asked him for pictures of his exhaust but he seems to have gone off-line. Does anyone have a model similar to his that has the drain holes he talks about? Would you be willing to post pictures? Thanks - NelsMy exhaust have that type of hole at the bottom and am pretty sure it's was done at the factory. (mine is a 2006 JDM model)
And as mentioned the main culprit for exhaust rust is very short rides that build up moisture without allowing muffler to warm up properly.
So make sure you take a long ride before storing the bike for days...!
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