2007-2018 GMC Sierra Ext Cab Quad 8” Sealed Box Subwoofer Enclosure Front Fire
Color Black
Dimensions:
Cutout Diameter 7 1/4"
Front Height 9 1/2"
Rear Height 6 1/2"
Length 54"
Depth 13 1/2"
0.60 cubic feet per sub
Total air volume 1.20 cubic feet
Mounting Depth 4 1/8”
5/8" MDF WOOD
Installation & Fitment:
Fits under the seat
No seat lift required
Doesn't take up leg room
Full Seat Functionality- Designed to allow the rear seat to completely close and lock in the factory position
OEM Aesthetic: Fits tucked away for a clean, professional "stealth" install.
Does not fit 2007 Classic GMC
Fitment Notice
Not all 8" subwoofers the same size! Please measure your subwoofer before ordering to ensure proper fit
Please confirm your subwoofer cutout size. This enclosure is designed for standard-frame 8" subwoofers.
Standard Cutout Diameter: 7.25" - 7.375"
Large Frame Cutout Diameter: 7.50" - 7.75"
Message us if your sub's cutout needs to be changed -- we'll make sure it fits right.
Not all subs may fit due to cutout, Mounting depth, or bog magnet.
*IMPORTANT*
- Due to size and weight, this item CAN NOT ship to PR, Guam, Virgin Islands, Alaska, and MP. For Hawaii customer will have to pay for shipping cost.