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ECA Chevy Silverado GMC Sierra CK 88-06 Extended Cab, 07-23 Crew Cab!
Proudly Made in Channelview TEXAS!!!!!!
Watch our Video Review below ⬇️
This Box FITS UNDER THE BACK SEATS ON A Chevy Silverado, GMC Sierra and older CK Truck.
Finally we have built a universal box for Most GMC Trucks!!!!!!!!
This is the hardest hitting sub box for the Chevy/GMC
Armor Coated With High Pressure Polyurethane Bed Liner Material
Increases The Base up to 4 times , stiffens the wood and no air leaks
Front Firing System
Ported Sub Box Fits Under The Rear Seat
Air Volume 1.83 Cubic Feet total no divider (mono)
Mounting Depth 4'' with the Magnet diameter less than 6''
Material 5/8'' M.D.F