Q Power 2 Hole 2014-2016 GM/Chevy Crew Cab 12" Ported Subwoofer Box | QBGMC14212 Qbomb empty Dual 2014 &#45; Current GMC Crew Cab &#45; 4 Door Bedliner coatingSpecifications Size&#58; 12 in Weight&#58; 44 lbs Package Quantity: 1