zBox GMC8FF4H Quad 8″ Under-Seat Ported Box for GMC
Under-seat four×8-inch face-front dual-port box for GMC 2014–up
$279.99
Overview
Four 8-inch woofers face front under a 2014-up GMC seat. The zBox GMC8FF4H is a ported four-sub under-seat enclosure with dual ports and carpeted MDF for those Sierra years when you want a wall of small drivers. Available in 8 inch only. No speakers or amp in the box — finish the install yourself.
Product details
Four-sub ported GMC under-seat
GMC8FF4H lines up four 8-inch cutouts face front with dual ports under the seat for GMC 2014-up.
Fitment
GMC Sierra under-seat space from 2014-up.
Build
Carpeted MDF with dual ports.
Sizing
Available in 8 inch. Confirm fit before ordering. Enclosure only.
Key features
- Ported four×8 face-front under-seat GMC box
- Fits GMC trucks 2014-up
- Dual-port venting
- 8 inch cutouts only
- Made in the USA
- Empty enclosure; add four matching 8s
Specifications
| Weight | 37 lbs |
|---|---|
| Dimensions | 55 × 9.25 × 15 in |
| Size | 8 inch |
| Enclosure Type | Empty |
| Vehicle Make | GM |
| Box Style | Ported |
| Model | GMC8FF4H |
| Configuration | Quad sub under seat face front ports |
| Acoustic design | Ported |
| Finish | Charcoal automotive carpet over MDF |
| Terminal | Side-mounted speaker terminal cup |
| Fitment | GMC 2014 and newer |
| Origin | Made in the USA |
| Parent SKU | GMC8FF4H |
| Variation SKUs | 8GMC8FF4H |
| Product type | Empty ported subwoofer enclosure |
| Mount | Under seat |
| Cutout sizes | 8 inch |
Important notes
Under-seat four-sub layout. Enclosure only.
What's in the box
- One empty GMC8FF4H enclosure (8 inch)
Manuals and downloads
None.
