Box for 2 Fi Bl 15"

[mazzasec 0]

this guy offered to build me a box on another forum here are the specs

17"H x 42"W x 24"D, 8.174^3ft gross vol. Slot port, 15.5" x 5" x 15.92"Long@37Hz. After all displacement, 7.048^3ft net box vol. Built from 3/4"UL-MDF. Seams matched and double sealed. Reinforced baffle board. Dado cut end caps. Seams fastened with Tite Bond glue and 1-5/8" counter sunk drywall screws. Walls fully braced and tied in with Hardwood bracing for Zero wall flex. 45 degree boards in the corners to kill standing sound waves. Gold spring loaded binding post. Ports painted black. Gray Ozite carpet.

it is going in a 04 ford explorer and my goal is SPL just wondering if this would work good for my situation