Just put on felpro 9441 pt gaskets this week. I picked them because its a motor I am experimenting with. I had some black and orange felpros on before this. I think they belonged on a regular 3.8 but held on to 29-34 psi. I hurt them when I developed a crack in the map sensor line and ran it hard. It pushed the gasket out just enough to seep coolant under boost. The 3 parts stores in the area had no turbo gaskets and these were free. I used studs and 85 ft lbs.