Q Power GMC102014DCAB Dual 10" Subwoofer Enclosure Box for 2014-2016 Chevy Silverado and GMC Sierra Double Cab Trucks Custom Fit Dual 10" Down Firing Subwoofer Enclosure Box For 2014-2016 Chevy Silverado and GMC Sierra Double Cab Trucks Finished in a Premium Charcoal Carpet Constructed out of High Quality MDF Independent Subwoofer Chambers for Maximum Bass Response