Take your truck's audio game to the next level with the NVX VE-GM-SLVECG2-S12S, a custom-fit single 12” sealed subwoofer enclosure crafted specifically for 2008–2013 Chevrolet Silverado 1500 and GMC Sierra 1500 Extended Cab pickups. This down-firing box is engineered to maximize bass output without sacrificing interior space. Perfectly contoured to fit under your rear seat, the enclosure offers a stealthy install while maintaining sound quality and durability. It's CNC-cut for pinpoint accuracy, hand-assembled, and built from 3/4" MDF for reliable performance on and off the road. The enclosure's sealed design is optimized for tight, responsive bass. Internally, it features 0.5 cubic feet of air space—ideal for compact or shallow-mount subwoofers. Its 4.75” mounting depth and 11-1/8” cutout make it easy to pair with a wide range of aftermarket subs. Wrapped in premium automotive-grade carpet, this box looks as good as it sounds—making it a must-have for clean, professional installs.