Hey guys I'm new to the board and need some help deciding on a build starting tomorrow morning. I am confused between a AB 18 or Mojo 15 in the trunk of a 03 ford focus se. I will be using a american bass hd 2500 watt amp on either sub. My local audio shop will need to build a box inside my trunk but guy said it may be kinda hard to get air space right. What do you guys think will hit/sound louder. Thanks