If it was sealed you will be louder but to me better backwards even louder port should be as close to the trunk as the port will allow it for proper breathing also but still it sounds good...
That's crazy..I jus ordered 2 skar vxf 15s and a taramps smart 5k bass ..jus waiting on my box to be built as we speak I believe my box is gonna be 6.5 cubes not sure of the tune yet..but ill post a video when it's done.keep bassin on..
U almost completely walled off my bro...I say get ya box builder to make some templates to seal off them left ova spaces between ya cabin an ya trunk...sound deaden trunk to seal in the presha an u should b solid aftuh dat.