Hello , saw under car today that there was a drip coming from exhaust pipe , it was at the u bend section at the front of car, right where it joins the middle section piece. Anyone know what this section called and what fix am I looking at ? Sorry for my useless explanation !

Wouldnt worry about it, unless it's severely corroded or clearly blowing(not dripping that's condensation finding a very small hole to escape)

There are small drain holes in some exhaust components by design, specifically to allow any condensed water to escape. In service, you will often find a small amount of black soot around these holes. Sometimes folks mistake this for a blowing exhaust, leading to an unnecessary replacement.

There is definitely one at the bottom of the OEM back box; not sure about the front pipe.