Fits 07-13 GMC Sierra Ext Cab Truck Alpine S-W10D2 Type S Dual 10 Custom Sub Box
Empty Sub Boxes. - Kick Panels. Fits 07-13 GMC Sierra Ext Cab Truck Alpine S-W10D2 Type S Dual 10 Custom Sub Box 2007-2013 GMC Sierra Ext Cab Truck Alpine Type S S-W10D2 Dual 10" Sub Box Enclosure New - Final 2 Ohm.