---
product_id: 80617092
title: "2001-2006 Chevy Silverado/GMC Sierra HD Crew Cab Dual 10 Downfire Subwoofer Box"
brand: "subthump"
price: "$U33423"
currency: UYU
in_stock: true
reviews_count: 9
category: "Subthump"
url: https://www.desertcart.uy/products/80617092-2001-2006-chevy-silverado-gmc-sierra-hd-crew-cab-dual
store_origin: UY
region: Uruguay
---

# Dual 10" downfire subs Fits 2001-06 Silverado/Sierra HD Crew Cab No vehicle modifications needed 2001-2006 Chevy Silverado/GMC Sierra HD Crew Cab Dual 10 Downfire Subwoofer Box

**Brand:** subthump
**Price:** $U33423
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your HD Crew Cab bass game—no compromises, just pure thump!

## Quick Answers

- **What is this?** 2001-2006 Chevy Silverado/GMC Sierra HD Crew Cab Dual 10 Downfire Subwoofer Box by subthump
- **How much does it cost?** $U33423 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/80617092-2001-2006-chevy-silverado-gmc-sierra-hd-crew-cab-dual)

## Best For

- subthump enthusiasts

## Why This Product

- Trusted subthump brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Installation:** No need to remove jack or modify truck—just drop in and thump
- • **Premium Charcoal Gray Finish:** Durable carpeted exterior with installed speaker terminals for a clean, professional look
- • **Space-Saving Downfire Design:** Fires downward with only 2" clearance, maximizing under-seat space
- • **Precision Fit for HD Crew Cabs:** Custom molded to fit 2500 & 3500 series without cutting or removing brackets
- • **Powerful Dual 10" Subwoofer Chambers:** Optimized .55 cu.ft. volume per chamber for deep, booming bass

## Overview

This Subthump dual 10" downfire subwoofer box is engineered exclusively for 2001-2006 Chevy Silverado and GMC Sierra 2500 & 3500 HD Crew Cab trucks. It features a custom-fit design requiring zero vehicle modifications, delivering powerful bass with two .55 cu.ft. chambers and a space-efficient downfire orientation. Finished in charcoal gray carpet with pre-installed terminals, it offers a seamless, professional installation that transforms your truck’s audio experience.

## Description

Our 01-06 GM HD Crew cab downfire box is designed to fit both the the bench seat rear and the 60/40 split rear seat. You've probably noticed that there aren't a lot of boxes out there for this particular truck. Many of the boxes out there are quite generic-looking or don't fit too good. Not to mention that when their ad says you must remove this bracket or that bracket, they actually mean that you have to "cut" the bracket out of the truck. Not with our box. Our box, on the other hand, requires no modifications to the truck whatsoever. The box fits great and sounds even better. It molds around every part of the under seat area, including all the tricky seat bracing and supports for an authentic-custom look. You don't even have to take out the jack. One of our customers suggested that you can drill another hole in the bass plate of the jack so it can simply be rotated out of the way and re-positioned. Other than that, just drop the box into place and start. thumpin'. This box is a must-have if you like your bass low and loud in your HD crew cab. With out a doubt, this is the loudest best sounding style box you can put in your crew cab, making this box our best selling box for this truck. Don't settle for anything less than a quality crew cab box from Subthump. If some other imitation looks 'cheap', it probably is just that. Our box is the real deal. Note: Will Not fit the Light Duty 1500 series crew. Fits 2500 & 3500HD crew cab only. Please note that due to speaker variability across the industry, Subthump takes no responsibility for subwoofers that do not fit this cabinet.

Review: Good purchase! - Fits perfect! Just as described I am completely happy and would recommend to anyone. It fit in my 2005 GMC 2500 Crew Cab 👍
Review: Great product, fit perfectly - Great product, fit perfectly, no problems with rockford r2d2. Someone asked where I mounted the amp so here is a pic.

## Features

- Fits 2001-2006 Silverado and Sierra 2500 & 3500 Heavy Duty 4-Door Crew Cab Trucks Only
- Holds Two 10" Subs and Fires Down with 2" of Clearance Underneath
- No modifications to vehicle are required, must move jack, see note below
- Volume: .55 cu.ft. per chamber, Mounting Depth: 5.75"
- Finish: Charcoal Gray Carpet as shown, Speaker terminals installed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01BYJNW4Q |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #136,474 in Electronics ( See Top 100 in Electronics ) #305 in Car Subwoofer Boxes & Enclosures |
| Brand | Subthump |
| Color | Charcoal Gray |
| Customer Reviews | 4.2 4.2 out of 5 stars (60) |
| Date First Available | February 18, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 33 pounds |
| Item dimensions L x W x H | 52 x 14 x 13 inches |
| Item model number | CHD-210 |
| Manufacturer | Subthump |
| Manufacturer Part Number | CHD-210 |
| Mounting Type | Power Grip |
| Product Dimensions | 52 x 14 x 13 inches |
| UPC | 689407165804 |

## Product Details

- **Automotive Fit Type:** Vehicle Specific Fit
- **Brand:** Subthump
- **Color:** Charcoal Gray
- **Is Foldable:** No
- **Item Weight:** 33 Pounds
- **Item dimensions L x W x H:** 52 x 14 x 13 inches
- **Manufacturer:** Subthump
- **Material:** MDF
- **Mounting Type:** Power Grip
- **Vehicle Service Type:** Truck

## Images

![2001-2006 Chevy Silverado/GMC Sierra HD Crew Cab Dual 10 Downfire Subwoofer Box - Image 1](https://m.media-amazon.com/images/I/6128iWrSYEL.jpg)
![2001-2006 Chevy Silverado/GMC Sierra HD Crew Cab Dual 10 Downfire Subwoofer Box - Image 2](https://m.media-amazon.com/images/I/61KfLoOcxbL.jpg)
![2001-2006 Chevy Silverado/GMC Sierra HD Crew Cab Dual 10 Downfire Subwoofer Box - Image 3](https://m.media-amazon.com/images/I/61SlESGnJTL.jpg)
![2001-2006 Chevy Silverado/GMC Sierra HD Crew Cab Dual 10 Downfire Subwoofer Box - Image 4](https://m.media-amazon.com/images/I/61jenhuEPJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good purchase!
*by T***D on November 22, 2025*

Fits perfect! Just as described I am completely happy and would recommend to anyone. It fit in my 2005 GMC 2500 Crew Cab 👍

### ⭐⭐⭐⭐⭐ Great product, fit perfectly
*by C***. on March 12, 2017*

Great product, fit perfectly, no problems with rockford r2d2. Someone asked where I mounted the amp so here is a pic.

### ⭐⭐⭐⭐⭐ Perfect under seat enclosure for an hd crew cab
*by J***O on April 15, 2023*

Threw this box in today with a pair of kicker compR10s box fits in the truck flawlessly. Sounds pretty good but doesn’t hit the lows as good as I was hoping maybe needs more airspace could be my sub combo idk I’m not an engineer😂 But you can’t really get anything bigger in there so it is what it is. Love it, highly recommend.

## Frequently Bought Together

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-25*