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ECA 4-8" Bedliner ported Rhino Sub Woofer Box for 1999-2006 CREW CAB GMC Sierra, Chevy Silverado.
Universal 4-8" Single Cab Box.
Chevy Silverado 1500,2500,3500 1999-2006 Crew cab
GMC Sierra 1500,2500,3500 1999-2006 Crew cab
Universal Single cab box to give you the most leg room. (Might not fit on some trucks with middle 3 seat.)
This Box FITS Behind THE BACK SEAT ON THE TRUCKS LISTED
Now you can have a bass system in your truck without losing any space!!!!
Armor Coated With High Pressure Polyurethane Bed Liner Material
Increases The Base up to four times stiffens the wood and no air leaks
Fits 2-8" Speakers
FRONT Fire box fits under the rear seat