I thought it was 8 cft when I posted the thread then Page3-4 whatever it was said it was like 7. but I think when I messaged Jason sometime ago in emails it was bigger? I'll triple check again >:|How does your box keep growing? It started as 8 cubes, we then established back on page 3 or 4 that it was actually less with the dims you gave, then on you tube, you say it's 9.8 cubes. I don't think box size increases e-peen, but i could be wrong.
Since its cabin firing, its to make sure no pressure goes backwards, thus losing output.Why seal the sub into the trunk with foam?
Once others chime in I can peal the half up and refoamThats what i was thinking. I think you are supposed to foam it off from the sub back. Pretty sure the point of the port is to join front and back waves from the sub and join them.