Give your GMC or Chevy's audio system a rockin' sound with this Q-Power Dual 12-Inch Subwoofer Box.This sub box is for 2014-2016 crew cab trucks and is finished with a bed liner coater for enhanced durability. It is compatible with 12-inch speakers and sealed for universal downfire under the seat. It fits in most trucks and is ready to deliver deep and powerful bass. It features high-quality spring-loaded terminals and 0.9 cubic feet of air space.Take your ride from boring to bumping with this Q-Power Dual 12-Inch Sub Box. You'll feel like you are at your own concert with every drive. | Qpower | | Dual 12" Sub Box | Chevy Silverado Crew Cab & GMC Sierra Crew Cab 14-18 | Black | Best Buy