Rockville
Rockville Dual 10" Ported Subwoofer Sub Box Enclosure for 2004-2006 GMC/Chevy Crew Cab
Rockville
Rockville Dual 12" Ported Subwoofer Sub Box for 2004-2006 GMC/Chevy Crew Cab Non-HD
Q Power
QPower QBomb Easy Set Dual Ported 12 inch Subwoofers Box Enclosure Car Audio with Bedliner Spray for GMC Chevy Crew Cab 2007-2013
American Sound Connection
American Sound Connection GM2X10-AV-ECL-US Compatible with Chevy Silverado 2500HD Crew Cab Truck 2001-2007 Dual 10" Subwoofer Enclosure Sub Box and 43C104 10" Subwoofer Single 4 Ohm 150W