FREE 1 to 3-Day Delivery on Orders $149+ Details

$12K Summer Sweepstakes! Enter Now >

Quad 8-Inch Front Firing Subwoofer Box; Poly Coated (99-06 Sierra 1500 Extended Cab)

Item S591305
2 Reviews
Our Price

$249.99 each

Military, Medical & First Responders $12.50 Available in AT Cash Rewards.
Confirm Eligibility

CONFIRM THIS FITS YOUR VEHICLE!

Select a different vehicle Help?
Update or Change Vehicle
Add to Cart
Save for later
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    or use

    Shop Owners Save More! Sign up for our dealer program
    Join For FREE

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • Quad 8-Inch Front Firing Subwoofer Box
      • Accommodates (4) 8-Inch Speakers
      • Armor Coated With High-Pressure Polyurethane Bed Liner Material
      • Included Coating Increases the Base and Stiffens the Wood
      • Engineered to Have No Air Leaks
      • Manufactured from 5/8-Inch MDF Material
      • Mounting Depth: 6 Inches
      • Dimensions: 56 x 18 x 14 Inches
      • Sold Individually
      • Easy Installation
      • Fits 1999-2006 GMC Sierra 1500 Extended Cab Models

      Description

      Powerful Bass Upgrade. The Quad 8-Inch Front Firing Subwoofer Box is designed to provide a dedicated enclosure solution that helps maximize subwoofer performance and audio clarity. Built to support multiple speakers in a carefully engineered enclosure, this subwoofer box delivers enhanced low-frequency response while maintaining a clean and organized audio installation. Its purpose-built design complements demanding sound system upgrades, making it an excellent choice for enthusiasts seeking improved bass output and overall listening enjoyment.

      Construction and Appearance. Manufactured from durable 5/8-inch MDF material, this enclosure is engineered for strength, rigidity, and long-term reliability. The armor-coated high-pressure polyurethane bed liner finish adds a rugged appearance while helping protect the enclosure against wear and surface damage. Additional coating reinforcement increases structural stiffness, reducing unwanted vibrations and contributing to cleaner sound reproduction.

      Installation. An easy installation design helps simplify the setup process while reducing the time required to integrate the enclosure into your vehicle's audio system. The adaptable design accommodates common installation practices and works well alongside existing audio components. Mounting the enclosure can be completed using appropriate hardware and standard tools.

      Application. This Quad 8-Inch Front Firing Subwoofer Box fits 1999-2006 GMC Sierra 1500 Extended Cab models.

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 1 Hour

      Difficulty Level:

      Simple installation for anyone.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Subwoofer Box
      4.5

      Customer Reviews (2)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Sierra 1500

      • 4.3L V6 - 99, 00, 01, 02, 03, 04, 05, 06
      • 4.8L V8 - 99, 00, 01, 02, 03, 04, 05, 06
      • 5.3L V8 - 99, 00, 01, 02, 03, 04, 05, 06
      • 6.0L V8 - 01, 02, 03, 04, 05, 06

            Sierra 1500 Categories

            Truck Categories