Product details:

engineered this custom, vehicle specific, single 12-inch, ported subwoofer enclosure specifically to fit under the rear cab seat of 2019-Up Chevrolet Silverado/GMC Sierra Crew Cab trucks. Unmatched by anything else on the market today, this subwoofer enclosure was designed from the ground up by our master craftsman to ensure it is a perfect fit in the vehicle. The ported, down-firing design of this enclosure allows for deep and thunderous bass output, all while preserving the limited cargo space most audiophiles are reluctant to give up. The quality of the box is evident from the minute you open the packaging, as the enclosure is constructed out of only the finest materials, including premium-grade MDF, ensuring it will last for years to come. Finally, the enclosure is finished in a high performance black trunk-linker carpeting that allows it to look just as good as it sounds.