Under-Seat 12" Subwoofer Enclosure for 2007-2013 Chevy Silverado 3500Hd Ext Cab Truck

Replacement under-seat sub box engineered for 2007-2013 Chevy Silverado 3500Hd Extended Cab trucks. This speaker enclosure is made to fit beneath the cab seat and accept a single 12" subwoofer, providing a compact way to add bass without sacrificing cabin space. Compatible with Chevy Silverado 3500Hd models from 2007 through 2013 and specifically designed for Ext Cab configuration.