The QBGMC142104DOOR is a custom-fit dual 10-inch underseat subwoofer enclosure designed specifically for 2014-2018 Chevrolet Silverado and GMC Sierra Crew Cab trucks. Engineered for maximum bass output while maintaining factory interior space, this enclosure delivers strong low-frequency performance in a stealthy OEM-style fit. Features & Benefits Custom-fit design for 2014-2018 GM Crew Cab trucks Designed for dual 10-inch subwoofers Underseat downfire enclosure configuration Heavy-duty MDF construction High-output ported enclosure design Maximizes bass while preserving cabin space OEM-style fitment under rear seats Durable automotive-grade carpeting Excellent for daily-driver and high-output systems Specifications Product Type: Vehicle-Specific Subwoofer Enclosure Model: QBGMC142104DOOR Subwoofer Size: Dual 10-inch Enclosure Type: Ported / Downfire Vehicle Fitment: 2014-2018 Chevrolet Silverado & GMC Sierra Crew Cab Cab Configuration: 4-door Crew Cab Construction Material: MDF wood Finish: Black automotive carpet Mounting Location: Under rear seat Speaker Mounting Depth: Approximately 5 inches Air Space: Approximately 1 cubic foot per chamber Port Tuning Frequency: Approximately 38Hz Vehicle Compatibility Compatible with select: 2014-2018 Chevrolet Silverado Crew Cab 2014-2018 GMC Sierra Crew Cab Designed specifically for full 4-door crew cab models. Fitment may vary depending on factory storage options, seat configuration, or aftermarket accessories.
