SSBOXES Chevy Silverado/GMC Sierra Crew Cab 2014-Up 4x8 Quad 8-Inch Ported Subwoofer Box

SSBOXES Chevy Silverado and GMC Sierra Crew Cab 2014-Up 4x8 quad 8-inch ported subwoofer box is built for truck owners who want serious bass in a custom-fit rear-seat enclosure.

Chevy Silverado/GMC Sierra Crew Cab 4x8 Subwoofer Box

This page helps customers searching for 4x8, 4 8, 4/8, 4 8s, quad 8, or four 8-inch subwoofer boxes find the right Chevy/GMC truck enclosure without digging through universal boxes.

Vehicle Fitment

• Fits: Chevrolet Silverado Crew Cab
• Fits: GMC Sierra Crew Cab
• Manufacturer fitment note: 2014-Up applications
• Cab style: Crew Cab
• Subwoofer layout: Four 8-inch subwoofers
• Box style: Ported enclosure

Box Specs

• Configuration: 4x8 quad 8-inch ported truck subwoofer box
• Air space: 2.75 cu ft
• Mounting depth: 9.5 inches
• SKU: SS8CH14UP48

Best Use

Choose this box for a Silverado or Sierra Crew Cab build where you want a louder quad 8 setup with clean fitment and a ported enclosure design.

Fitment Note

Confirm your exact year, cab style, seat layout, floor shape, subwoofer mounting depth, and amplifier power before ordering or installation.