Just got a new set of ford racing 5230-GTAs and I noticed that driver's side has a small hole at the bottom towards the engine side but the passenger one doesn't. Looked around real quick and seems this is a weep hole for condensation and actually found a borla PDF about how to drill these. I was wondering if I should go ahead and drill passenger muffler? Any idea why only one has it? I know they were discontinued so maybe just bad quality control. See pics.