well in the boonies we sell cars and install stereos. thats how we roll. but. whatever. the truck has alot of work done to it. its loud. yea, its sealed. but he likes the sound of sealed boxes wether or not the btls were made for ported boxes or not. i am not him. so if your going to ***** your wasting your time. its not my vehicle. just sharing. but flame away. i dont care. i like it. it gets loud as **** and sounds **** good doing it.