Where to Drill exhaust mod mercury outboard.

[gotomgo]

I've seen this topic covered a million times but have never seen a pic of one. not looking for performance just noise. Where exactly do I drill my lower unit to let some exhaust exit ? To make it louder . I'm not gonna go crazy and swiss cheese it just few small holes. It's a Merc 2.5L black max 175 . I only go on the Chesapeake Bay no rivers no lakes etc... So noise is no problem.i can tap and thread the holes as well if I don't like it. I also have a spare lower .please post a pic of where Exactly to drill. I'm not talking about taking the power head off and drilling the can etc... Talking about quick and easy drill the lower