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

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

Find for your Sierra 1500

Dual 12-Inch Down Fire Subwoofer Box; Poly Coated (07-13 Sierra 1500 Extended Cab w/ High Transmission)Find parts that fit my vehicle

Item S584923
Coupon Added
2 Reviews
Our Price

$344.99 each

Coupon
Apply 5% Discount
One coupon per order | Details
Military, Medical & First Responders $16.75 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 Down Fire Subwoofer Box
      • Dual 12-Inch Down Firing Design
      • Armor Coated With High-Pressure Polyurethane Bed Liner Material
      • Increases Bass, Stiffens Wood, and Prevents Air Leaks
      • Constructed From 5/8-Inch MDF
      • Air Volume: 0.71 Cubic Feet Per Side
      • Mounting Depth: 6 Inches
      • Dimensions: 57" L x 12" W x 17" H
      • Lifetime Guarantee
      • Easy Installation
      • Fits 2007-2013 Sierra 1500 Extended Cab Models with High Transmission

      Description

      Powerful Hidden Bass Solution. The Dual 12-Inch Down Fire Subwoofer Box delivers deep, powerful bass while staying discreetly mounted under your 2007-2013 Sierra 1500 Extended Cab models with High Transmission rear seat. Perfect for audiophiles who need serious low-end without sacrificing cabin space, this enclosure enhances your sound system with tight and accurate bass response.

      Construction and Appearance. Built from durable 5/8-inch MDF, the box is armor-coated with a high-pressure polyurethane bed liner material for maximum durability and acoustic integrity. This coating prevents air leaks, stiffens the structure, and enhances bass performance. Each chamber provides 0.71 cubic feet of air volume and supports subs with a mounting depth of up to 6 inches.

      Installation. Installation is easy, designed to fit under the rear seat with no modifications required, making it ideal for DIY installers and audio professionals alike.

      Application. This Dual 12-Inch Down Fire Subwoofer Box fits 2007-2013 Sierra 1500 Extended Cab models with High Transmission.

      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 12-Inch Down Fire Subwoofer Box
      2.5

      Customer Reviews (2)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Sierra 1500

      • 4.3L V6 - 07, 08, 09, 10, 11, 12, 13
      • 4.8L V8 - 07, 08, 09, 10, 11, 12, 13
      • 5.3L V8 - 07, 08, 09, 10, 11, 12, 13
      • 6.0L V8 - 07, 08, 09
      • 6.2L V8 - 09, 10, 11, 12, 13