True but if I build it much deeper I lose leg room and I'm 6"2. One thought I had in mind was to remove the middle portion seating area. I have bucket type seats with a middle seating area. What I thought about doing was removing that and have a box built in between the seats. Should be plenty of room to build a nice ported box. Could fire the sub forwards, upwards or even downwards. Sound crazy? And I could always go with a beefier sub and more power like my Hifonics amp.A custom box can makes a world of difference.