whats the deal with mopar thermostat housings?

that crappy billet thermostat housing from mopar is leaking. i even sanded it and threw a new gasket under there. i cant believe this stupid thermostaat hosuing and gasket leaking deal is what keeps putting me off from fine tuning this thing. along with the fuel leak....what a joke.
Hey man i seen the fix for this www.terrysautolab.com i have 2 of them.I put one on my big block and it has 6500 miles on it with no leaks and no warping.Check it out.