Housing and limosine?

Hi together, I found something there and in nem thread someone has shown a few pictures how to connect a closed sub to the skisack in a limo…. the sound of a closed sub I really like…. only unfortunately there is hardly any noticeable bass in the interior… the whole is a bit quiet, BR is already a good corner better for me, only unfortunately I give away a lot of pressure because not everything comes in the interior… so my question to those who have the same problem with a limo Is it possible to have a 30’s in a closed level technically better closed than a BR which I simply put in a K-room? Greeting Eddie