I have an 87 Sunsport. Over the years I've experienced the inevitable floor rot, transom rot,stringer rot. This year it's water leaking out where the exhaust hits the stringer on the driver side (seems to be always that side). We tend to put obese passengers on the port side, and you get better air heelside. I'm not proud of this, but when duct tape will do it...

My approach would be to start chiseling away at the soft stringer where the stainless exhaust
enters the stringer and pack it with marine sealant.

Salty, you alwalys steer me right, got any solutions with chewing gum?