Title
A ported Silverado extended cab sub box for 1999-2006 trucks, including the GMC Sierra extended cab. It fits under the rear seat and runs two 8" or two 10" subwoofers firing forward, tuned to 38 Hz with 1.1 cubic feet of airspace per sub.
| Subwoofers | Two 8" or two 10" |
|---|---|
| Enclosure type | Ported, subs fire forward |
| Airspace | 1.1 cu ft per sub |
| Port tuning | 38 Hz |
| Mounting depth | 7" |
| Cutouts (standard) | 8": 7" 10": 9 1/8" |
| Construction | MDF, CNC precision cut, assembled by hand |
| Terminals | Speaker terminals |
Check that your subs are no deeper than 7", that their cutout matches the specs above, and that they suit 1.1 cu ft each at 38 Hz. Type your sub model in the "What Sub Model are you using?" box so the box is cut to match. Shop 8" subwoofers or 10" subwoofers.
Built to order by Xtreme Enclosures: CNC precision cut from MDF and assembled by hand, then carpeted. Estimated lead time: 20–40 business days.
Questions before you order? Call SSA at (443) 345-1537 or email support@soundsolutionsaudio.com.
A ported Silverado extended cab sub box for 1999-2006 trucks, including the GMC Sierra extended cab. It fits under the rear seat and runs two 8" or two 10" subwoofers firing forward, tuned to 38 Hz with 1.1 cubic feet of airspace per sub.
| Subwoofers | Two 8" or two 10" |
|---|---|
| Enclosure type | Ported, subs fire forward |
| Airspace | 1.1 cu ft per sub |
| Port tuning | 38 Hz |
| Mounting depth | 7" |
| Cutouts (standard) | 8": 7" 10": 9 1/8" |
| Construction | MDF, CNC precision cut, assembled by hand |
| Terminals | Speaker terminals |
Check that your subs are no deeper than 7", that their cutout matches the specs above, and that they suit 1.1 cu ft each at 38 Hz. Type your sub model in the "What Sub Model are you using?" box so the box is cut to match. Shop 8" subwoofers or 10" subwoofers.
Built to order by Xtreme Enclosures: CNC precision cut from MDF and assembled by hand, then carpeted. Estimated lead time: 20–40 business days.
Questions before you order? Call SSA at (443) 345-1537 or email support@soundsolutionsaudio.com.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Diners Club, Discover and more.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Diners Club, Discover and more.
Before you browse
We use cookies to run the store, to measure how it performs, and — only if you allow it — to show you our products on other sites. You can change your mind at any time. Read our privacy policy
Necessary cookies always run — the store cannot work without them. Everything else is your call.
Necessary
The cart, checkout, sign-in, fraud prevention and security. These cannot be switched off.
Preferences
Remembers your currency, region and recently viewed products.
Analytics
Measures how the store is used so we can fix what is broken and improve what is not.
Marketing
Lets us measure our advertising and show you our products on other websites. Turning this off also opts you out of the sale and sharing of your information for advertising.