The 3 ply UNI layups were fully cured so I removed them from the plenums and trimmed them up. I then drilled several 1/8" holes all over the contact area of the plenums for the resin to join both halves. I taped off the surrounding areas and laid both halves over pure epoxy. In Hindsight, I think I should have chosen a wet flox for filling voids, but this should last long enough. I hope :) After cure, they will be trimmed again and painted with matching Hammered Black Paint. The inside of the plenums will get flat black to hide the ugly filler. I'm really looking forward to the all Carbon Versions of these plenums. Winter Project!!!!