What were they thinking?

I've got an 07 Gravity Games boat with the Indmar 340hp motor. I've noticed that there's been a lot of water in the bilge lately so when launching the boat on Saturday, I gave it a little extra trailer time before dropping it in the water. One of the water fittings on the exhaust manifold was leaking. I shut the motor down, loosened the hose clamp and just as soon as I did, the fitting broke. The fittings they use on these motors are plastic. Plastic parts on a cast iron exhaust manifold... What the hell is Indmar thinking? The rest of the part that was left in the hole had gotten so hot that it bonded to it and I had to heat it up and pick it out little bits at a time. No one in town had the right parts to fix it so I had to buy a Mercruiser fitting and a brass reducer to get it all to work. 4 hours later, it's fixed, but the day on the water was lost...

So now, from the water leak, all the bolts on the intake manifold are rusted, all the indentions on it are also rusted, the exhaust manifold was water stains on it...

I suggest everyone replaces the 2 plastic fittings on their exhaust manifolds before you have one break while your out. Had I not noticed this on the boat ramp I would've had a really bad day.