Custom “EXTERNAL” ported box build, for 2-18” Crossfire C7 in a ‘80s Cadillac.

Customer that I built/installed the 2-12” Sundown ZV4/5 subs for, decided he wanted to upgrade 😳 He was doing a +143db and hair tricks 🤷🏽‍♂️ Oh well.....bass head life I guess. Hope you enjoy 🤙🏽