I have a hatchback and wanted to have a little more bump but have some trunk space still. With the little to begin with. I have mapped out what I'd like for it to look like. The setup is going to consist of a 12" Premier Champion Series woofer, The Pioneer 400RMS mono Class D amp to go along with that. It will be a ported box tuned to 33hz with a double flared 4" port. SQ/SPL is what I was going for. I know alot about audio. I am not here to have you criticize me having it ported. The Grey is going to be plexiglass. Please excuse my poor attempt at trying to show you the layout. So... anyway, any other ideas? No fibreglass please.