SSBOXES Chevy Silverado/GMC Sierra Crew Cab 2014-Up Quad 8-Inch Ported Subwoofer Box

SSBOXES quad 8-inch ported subwoofer box fits Chevy Silverado and GMC Sierra Crew Cab trucks for a clean under-seat truck bass upgrade.

Chevy Silverado / GMC Sierra Crew Cab 4x8 Ported Box

This enclosure is made for customers searching for a 4x8, 4 8, or quad 8 subwoofer box with vehicle-specific fitment instead of a loose universal enclosure. It is built for truck audio systems that need strong bass while keeping the cabin layout clean.

Vehicle Fitment

• Fits: Chevy Silverado Crew Cab and GMC Sierra Crew Cab
• Manufacturer fitment note: 2014-up Crew Cab applications
• Cab style: Crew Cab
• Subwoofer layout: Four 8-inch subwoofers
• SKU: SS8CH19CC48

Box Specs

• Configuration: Ported 4x8 subwoofer box
• Air space: 2.75 cubic feet
• Mounting depth: 9.5 inches
• Finish: Bedliner spray coating
• Made in USA

Best Use

Choose this box for a Silverado or Sierra Crew Cab build where you want four 8-inch subs under the rear seat with a ported enclosure designed for truck bass.

Fitment Note

Vehicle trim, seat style, floor layout, and aftermarket equipment can affect fitment. Confirm your exact year, cab style, and available mounting depth before installation.