Chevrolet/GMC Truck Custom Fit Sub Boxes Click Item to View Picture and Purchase Info Chevrolet/GMC Truck, Extended Cab, (HD) Heavy Duty & Crew Cab, Avalanche & Camaro Custom Fit Sub Boxes Chevy/GMC Truck C07-EC 2007 - 2008 (New Body Style) Chevy/GMC Extended Cab Truck Custom Fit Dual 10" Downfire Subwoofer Enclosure $ 139.00 Chevy/GMC Truck C07-4D 2007 - 2008 (New Body Style) Chevy/GMC Crew Cab Truck Custom Fit Dual 10" Downfire Subwoofer Enclosure $ 139.00 Chevy/GMC Truck C04-4D 2001 - 2006 Chevy/GMC 1500 Crew Cab Trucks Dual 8" & 10" Subwoofer Enclosure $ 139.00 Chevy/GMC Truck C0306-4D 2003 - 2006 Chevy/GMC 1500 Crew Cab Truck Dual 10" Downfire Subwoofer Enclosure $ 139.00 Chevy/GMC Truck C9906 1999 - 2006 Chevy/GMC Extended Cab Truck Custom Fit Dual 10" or 12" Down Fire Subwoofer Enclosure $ 130.00 Chevy/GMC Truck C9906S 1999 - 2006 Chevy/GMC Extended Cab Truck Custom Fit Single Downfire 10" or 12" Subwoofer Enclosure $ 109.00 C9906S_Loaded 1999 - 2006 Chevy/GMC Ext. Cab Truck Single 10" Kicker Sub/Box Package $ 199.00 Chevy Avalanche Truck CAV 2001 - 2008 Chevy Avalanche Truck Dual 10" Downfire Subwoofer Enclosure $ 139.00 Chevy/GMC Reg. Cab Truck Chevy/GMC Regular Cab Truck Dual 10" or 12" Subwoofer Enclosure w/ center console cut-out $ 114.00 Chevy/GMC Truck CHD 2001 - 2002 Chevy/GMC 2500 & 3500 (HD) Truck Dual 10" Downfire Subwoofer Enclosure $ 139.00 Chevy/GMC Truck CHD Single 2001 - 2006 Chevy/GMC 2500 & 3500 (HD) Truck Single 10" Downfire Subwoofer Enclosure $ 109.00 CHDS_Loaded 2001 - 2006 Chevy/GMC 2500 & 3500 (HD) Truck Single 10" Kicker Sub/Box Package $ 199.00 Chevy/GMC Truck C8898 1988 - 1998 Chevy/GMC Ext. Cab Custom Fit Dual 10" or 12" Downfire Subwoofer Enclosure $ 130.00 Chevy/GMC Truck C8898FF 1988 - 1998 Chevy/GMC Ext. Cab Custom Fit Dual 10" or 12" Front Fire Subwoofer Enclosure $ 130.00 Chevy/GMC Truck C8898S 1988 - 1998 Chevy/GMC Ext. Cab Truck Single 10" or 12" Downfire Sub Enclosure $ 109.00 C8898S_Loaded_CVR10 1988 - 1998 Chevy/GMC Ext. Cab Truck Single 10" Kicker Sub/Box Package $ 199.00 Chevy/GMC Truck S10 Chevrolet S-10 & GMC Sonoma Ext. Cab Truck Dual 10" or 12" Downfire Subwoofer Enclosure $ 119.00 Chevy S-10 Reg. Cab Truck Chevy S-10/GMC Sonoma Regular Cab Truck Dual 10" or 12" Subwoofer Enclosure w/ center console cut-out $ 99.00 CFB93+ 1993 - 2002 Camaro, Z28, SS, Firebird, Trans-Am, Formula Dual 10" or 12" Subwoofer Enclosure $ 130.00 CFB8292 1982 - 1992 Camaro, Firebird, Trans-Am, GTA Dual 10" or 12" Subwoofer Enclosure $ 130.00 CSP 1993 - 2002 Camaro, Firebird, Trans-Am Single 10" Side Pocket Subwoofer Enclosure $ 89.00 Spacer Plate Custom Subwoofer MDF Spacer Plates $ 9.99