Ported Dual 8 Box 1999-2006 Chevy Silverado Extended Cab
Ported Dual 8 Box 1999-2006 Chevy Silverado Extended Cab

Ported Dual 8 Box 1999-2006 Chevy Silverado Extended Cab

Xtreme EnclosuresCustom Built: Estimated lead time of 20-40 Business days.
SKU: PORT GMEC99 8.2 sm In Stock
Regular price$414.70

A ported Silverado sub box for 1999-2006 Chevrolet Silverado and GMC Sierra extended cabs. It sits on one side of the rear seat and holds two 8" subwoofers in a vented MDF box with 1.7 cubic feet of airspace tuned to 35 Hz.

Fits

  • 1999-2006 Chevrolet Silverado extended cab
  • 1999-2006 GMC Sierra extended cab
  • Mounts on one side of the rear seat; you pick the side when ordering
  • Dual 8" subs only

Specs

Subwoofers Two 8"
Enclosure type Vented (ported)
Airspace 1.7 cu ft
Port tuning 35 Hz
Mounting depth 7"
Cutouts Standard 7" for 8s
Construction MDF, CNC cut and assembled by hand
Terminals Speaker terminal included

Install notes

  • The terminal ships uninstalled to avoid shipping damage; it is wrapped on its own and packed inside the box.
  • Give the side of the rear seat you want, along with your sub model, when you order.

Choosing your subs

Check your subs' specifications before buying: they should suit 1.7 cu ft of ported airspace, fit within 7" of mounting depth and match the cutout. A sub larger than these specs may not fit. Type the sub model in the "What Sub Model are you using?" box when you order so the holes are cut to match, since cutout diameters vary from sub to sub; if you have no subs yet, call for a suggestion on what will fit. Shop 8" subwoofers.

Built to order

Built to order by Xtreme Enclosures: CNC precision cut from MDF and assembled by hand. Estimated lead time: 20–40 business days.

Questions before you order? Call SSA at (443) 345-1537 or email support@soundsolutionsaudio.com.

Sale Ends November 19th, 2026
Minimum Purchase of $349.00
*Applies to Mechman, SSA Limitless Lithium & XS Power Products ONLY
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A ported Silverado sub box for 1999-2006 Chevrolet Silverado and GMC Sierra extended cabs. It sits on one side of the rear seat and holds two 8" subwoofers in a vented MDF box with 1.7 cubic feet of airspace tuned to 35 Hz.

Fits

  • 1999-2006 Chevrolet Silverado extended cab
  • 1999-2006 GMC Sierra extended cab
  • Mounts on one side of the rear seat; you pick the side when ordering
  • Dual 8" subs only

Specs

Subwoofers Two 8"
Enclosure type Vented (ported)
Airspace 1.7 cu ft
Port tuning 35 Hz
Mounting depth 7"
Cutouts Standard 7" for 8s
Construction MDF, CNC cut and assembled by hand
Terminals Speaker terminal included

Install notes

  • The terminal ships uninstalled to avoid shipping damage; it is wrapped on its own and packed inside the box.
  • Give the side of the rear seat you want, along with your sub model, when you order.

Choosing your subs

Check your subs' specifications before buying: they should suit 1.7 cu ft of ported airspace, fit within 7" of mounting depth and match the cutout. A sub larger than these specs may not fit. Type the sub model in the "What Sub Model are you using?" box when you order so the holes are cut to match, since cutout diameters vary from sub to sub; if you have no subs yet, call for a suggestion on what will fit. Shop 8" subwoofers.

Built to order

Built to order by Xtreme Enclosures: CNC precision cut from MDF and assembled by hand. Estimated lead time: 20–40 business days.

Questions before you order? Call SSA at (443) 345-1537 or email support@soundsolutionsaudio.com.

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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.

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