We are an Ground Shaker authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
This custom enclosure accommodates two 12-inch subwoofers, delivering powerful, controlled low-end performance. Its dual sealed design features two separate chambers for precise bass reproduction. Constructed from high-quality MDF and wrapped in durable black trunk-liner carpet, it ensures long-lasting strength and a clean, factory-style appearance. Designed specifically for 2007–2018 GMC Sierra and Chevrolet Silverado Extended (Double) Cab models, it fits neatly under the rear seat. Cutouts measure 11 1/8 inches, compatible with standard 12-inch subwoofers, and the design allows for either down-firing or upward-firing configuration depending on the sub-series, optimizing floor-space utilization.
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We are an Ground Shaker authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
This custom enclosure accommodates two 12-inch subwoofers, delivering powerful, controlled low-end performance. Its dual sealed design features two separate chambers for precise bass reproduction. Constructed from high-quality MDF and wrapped in durable black trunk-liner carpet, it ensures long-lasting strength and a clean, factory-style appearance. Designed specifically for 2007–2018 GMC Sierra and Chevrolet Silverado Extended (Double) Cab models, it fits neatly under the rear seat. Cutouts measure 11 1/8 inches, compatible with standard 12-inch subwoofers, and the design allows for either down-firing or upward-firing configuration depending on the sub-series, optimizing floor-space utilization.
