DDWH
so this rusting is normal? and corrosion around the hole is not gonna hurt the muffler?
I thought it was a weep hole because the hole was too perfect but I don't remember my Borla having one.
Do I need to do any maintenance to the stock muffler? Is the rust just superficial?
Thanks for the help.. i would hate to have to go to the dealer and pay for a new muffler!
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