BLACK 8" SEALED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 7 1/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 8" SOLO BARIC SEALED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 7 3/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 8" PORTED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 7 1/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -2 SLOT PORTS (DIMENSIONS: H-3.5” W-1.5” L-11.5”) -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 8" SOLO BARIC PORTED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 7 3/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -2 SLOT PORTS (DIMENSIONS: H-3.5” W-1.5” L-11.5”) -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 10" SEALED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 9 1/4" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 10" SOLO BARIC SEALED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 9 3/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 10" PORTED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 9 1/4" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -2 SLOT PORTS (DIMENSIONS: H-3.5” W-1.5” L-11.5”) -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 10" SOLO BARIC PORTED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 9 3/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -2 SLOT PORTS (DIMENSIONS: H-3.5” W-1.5” L-11.5”) -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 10" JL AUDIO TW3 SEALED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 9 5/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 12" SEALED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 11 1/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 12" SOLO BARIC SEALED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 11 1/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 12" PORTED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 11 1/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -2 SLOT PORTS (DIMENSIONS: H-3.5” W-1.5” L-11.5”) -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 12" SOLO BARIC PORTED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 11 1/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -2 SLOT PORTS (DIMENSIONS: H-3.5” W-1.5” L-11.5”) -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) BLACK 12" JL AUDIO TW3 SEALED DUAL SUB BOX, FITS CHEVY SILVERADO EXTENDED CAB 99-06 & 07 CLASSIC SPECIFICATIONS: -CUTOUT DIAMETER: 11 5/8" -TOTAL AIR VOLUME: 1.78 CUBIC FT. -2 INDIVIDUAL CHAMBERS -VOLUME PER SUBWOOFER: 0.89 CUBIC FT. -WEIGHT: 40 LBS. -MOUNTING DEPTH: 6 3/4" DIMENSIONS: -HEIGHT: 8 1/4” -LENGTH: 54 1/4" -DEPTH: 13 1/2" CONSTRUCTION: -5/8" MDF WOOD -CARPETED WITH DURABLE TRUNK LINER FINISH -GLUED WITH HIGH QUALITY TITEBOND WOOD GLUE -2" STAPLES + MAINLY SEALED WITH HIGH QUALITY TITEBOND SILICONE + INSTALLATION: -FITS UNDER REAR SEAT -UPWARD FIRING -2007 FITS ONLY OLD BODY STYLE -WILL NOT FIT TRUCKS WITH V SHAPE HUMP (USE JCHV MODELS FOR V SHAPE HUMP) NOT ALL SUBS WILL FIT DUE TO THE CUTOUT DIAMETER OR MOUNTING DEPTH SO PLEASE CHECK THE DIMENSIONS TO MAKE SURE THIS BOX SUITS YOUR SUBS