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

$20K Sweeps! 10 Chances to Win! Enter Daily >

Find Audio & Electronics for your Silverado 1500

Dual 12-Inch Under Rear Seat Down Firing Subwoofer Box; Poly Coated (99-06 Silverado 1500 Extended Cab)Find parts that fit my vehicle

Item S204204
Coupon Added
2 Reviews
Our Price

$249.99 each

Coupon
Apply 5% Discount
One coupon per order | Details
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

      • Dual 12-Inch Under Rear Seat Down Firing Subwoofer Box
      • Dual Twelve-Inch Down-Firing Subwoofer Enclosure
      • Fits Under Rear Seat of Extended Cab
      • Armor Coated With High-Pressure Polyurethane Bed Liner Material
      • Increases Bass Output and Stiffens Enclosure to Prevent Air Leaks
      • Each Side Provides 0.77 Cubic Feet of Air Volume
      • Six-Inch Mounting Depth Per Subwoofer
      • Constructed From Five-Eighths Inch MDF
      • Dimensions: 52 Inches x 11 Inches x 17 Inches
      • One-Year Warranty
      • Easy Installation
      • Fits 1999 to 2006 Silverado 1500 Extended Cab

      Description

      Deep Bass, Clean Fitment. The Dual 12-Inch Under Rear Seat Down Firing Subwoofer Box is the ideal solution for Silverado owners looking to enhance their sound system without sacrificing interior space. Designed to fit neatly under the rear seat of extended cab models, this enclosure delivers tight, responsive bass while maintaining a factory-like appearance and layout.

      Construction and Appearance. Built from 5/8-inch MDF and finished in a high-pressure polyurethane bed liner coating, this enclosure offers maximum durability and acoustic performance. Each chamber provides 0.77 cubic feet of air volume with a six-inch mounting depth to accommodate a wide range of subwoofer brands. The down-firing design increases output while protecting the subs from cargo and foot traffic.

      Installation. Installation is straightforward with a true drop-in fit under the rear bench seat. No major modifications are needed, making it an easy DIY upgrade for most audio enthusiasts.

      Warranty. This subwoofer enclosure is backed by a one-year warranty for added peace of mind.

      Application. This Dual 12-Inch Under Rear Seat Down Firing Subwoofer Box fits 1999 to 2006 Silverado 1500 Extended Cab.

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

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 30 Minutes

      Difficulty Level:

      Simple installation for anyone.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Dual Twelve-Inch Under Rear Seat Down-Firing Subwoofer Box to Poly Coated
      3.0

      Customer Reviews (2)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Silverado 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 - 03, 04, 05, 06