Box Specifications Fits All Years 350z Coupe Wedges in place under the strut bar Hole cutout for 8" Sub: 7 1/8" Hole cutout for 10" Sub: 9 1/8" Subwoofer Mounting Depth: Approx. 7.00" Most Subs Under 7" Deep will Fit Some subs with huge magnet may need spacer to fit Total Airspace: 0.75 cubic ft. Made with 0.75" MDF Speaker Wire Terminals: 1 Per Subwoofer Box Type: Sealed Box Box Finish - Carpet Installed Pictures Shown in Black Subwoofers, Amps, and Grill Not Included Hole Cutouts adjustable per request Airspace Can be reduced if requested