The QBGMC12DF is a custom-fit downfire subwoofer enclosure designed for Chevrolet Silverado and GMC Sierra Crew Cab trucks. Built to deliver deep, powerful bass while maintaining factory interior space, this enclosure combines a stealthy underseat fit with strong low-frequency performance and subwoofer protection. Features & Benefits Custom-fit design for GM Crew Cab trucks Designed for dual 12-inch subwoofers Downfire subwoofer configuration Underseat mounting design Heavy-duty MDF construction Maximizes bass while preserving cabin functionality OEM-style appearance and fitment Durable automotive-grade finish Excellent for daily-driver and high-output systems Specifications Product Type: Vehicle-Specific Subwoofer Enclosure Model: QBGMC12DF Subwoofer Compatibility: Dual 12-inch subwoofers Enclosure Type: Sealed / Downfire Vehicle Fitment: Chevrolet Silverado Crew Cab GMC Sierra Crew Cab Mounting Location: Under rear seat Construction Material: MDF wood Finish: Black automotive carpet or bedliner coating Air Space: Approximately 1.0–1.25 cubic feet per chamber Maximum Mounting Depth: Approximately 6 inches Configuration: Dual chamber enclosure Vehicle Compatibility Compatible with select Chevrolet Silverado and GMC Sierra Crew Cab trucks. Fitment may vary
