Armor coated with high pressure polyurethane bed liner material which increases the base and stiffens the wood with no air leaks

Dimensions: 59" x 19" x 15"

Mounting Depth: 5"

Front-Firing Ported Subwoofer Box for 1988–1998 Chevy Silverado / GMC Sierra Extended Cab – Fits 4x 8" Subs

Bring modern bass to your classic truck.
This custom-fit front-firing ported subwoofer enclosure is designed specifically for 1988–1998 Chevy Silverado and GMC Sierra Extended Cab trucks. Built to maximize output without compromising interior space, this box fits cleanly behind the rear seat and delivers powerful, punchy low-end with four 8-inch subwoofers of your choice.

🔧 Key Features:

• ✅ Vehicle-specific design for 88-98 Silverado/Sierra Extended Cabs

• ✅ Holds four 8" subwoofers – optimized for maximum SPL

• ✅ Front-firing for clean bass projection into cabin

• ✅ Ported design enhances airflow & bass response

• ✅ Durable MDF construction for long-term performance

• ✅ Easy install – no major mods required

Check out our install Instructions! Click Here

🎥 Watch the box in action!
Check out this live demo & review in our featured YouTube Short:
👉 Click to Watch

📦 Dimensions & Fitment:

• Fits behind rear seat in extended cab

• Compatible with most shallow or standard-mount 8” subs

• Port tuned for deep, rich bass output

💥 Perfect for bassheads who want to keep their cabin clean and loud. Whether you're cruising or competing, this box will turn your Silverado or Sierra into a rolling sound machine.