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Custom Chevy Silverado 99-06 Extended Cab Subwoofer Box 10

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Adding bass to a truck can be a very complicated problem to tackle, especially when building a box! We offer pre-built enclosures that are ready to be dropped into your 99-06 Chevy Silverado / GMC Sierra truck that offer unbeatable performance and sound quality that simply cannot be matched. This is a single 10" down firing model, why down firing? This style enclosure actually increase the SPL output of your subwoofers forcing the sound waves to travel up in down inside the cab before reaching the listener. The woofers are spaced off the floor so it's not possible for them to hit the floor while playing. It also keeps the subs out of view for security concerns. Overall you cannot find a better fitting or sound box at this price! This enclosure features a special black spray on coating that is comparable to bed liner spray. It not only makes for a more cosmetically pleasing look but is also a protective water resistant shell!
Our boxes are made from precision cuts of MDF. They are then liquid nailed, nailed and completely sealed. We then wrap them with high quality carpet that matches most vehicle interiors. All Boxes feature high grade spring loaded terminal cup(s) for the absolute best connection possible. All the custom series enclosures are made to fit precisely into your 99-06 Chevy Silverado Extended Cab to the get the max performance from every extra inch of wasted space.

We guarantee you will not only see a difference in the quality of the boxes we build, but you will hear the difference and that is what is it is truly all about.

Custom Chevy Silverado 99-06 Extended Cab Subwoofer Box 10"
  • Single 10" Chevy 99-06 Extended Cab Sub Box
    • Air Space: 0.90 Cubic Feet
    • Mounting Depth: 6"
    • Sealed Enclosure
    • Dimensions: Width 23-1/2" x Front Height 9-1/2" x Rear Height 7" x Depth 13-1/2"
  • Constructed with High Quality MDF
  • High Quality Binding Terminal Cup (Accepts Banana Terminal Plugs OR Bare Wire 'up to 10GA')
  • Seven Sprayed on layers for a long lasting, durable, water resistant enclosure
    (same technology as spray-on bed liner)
  • Enclosure installs on Passenger side under rear bench seat down firing
This box fits:
  • 1999 - 2006 Chevy Silverado Extended Cab 1500, 2500, & 3500
  • 1999 - 2006 GMC Sierra Extended Cab 1500, 2500, & 3500
This item is New
Proposition 65 Warning for California Consumers

WARNING: This product can expose you to chemicals including Formaldehyde (gas) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to

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Frequently Asked Questions for this Product:

When will my order ship?
Most orders placed before 3:00 PM CST will ship within 24 hours. If you need a product by a specific time please contact us at 1-877-275-4434 before ordering.
When will I receive my tracking number?
Most tracking numbers are sent out around 5:30 PM CST of the following business day. Please allow 24-business-hours after ordering before requesting tracking information.
How fast will I receive my product?
Depending on your location it may take 3-4 business days for your order to arrive. Your tracking number will tell you the exact day your order will arrive. If you need an order by a specific date we recommend you call us at 1-877-275-4434

Return Policy
Due to the size of this item it cannot be returned for a refund. If the box is damaged in-transit we will replace it.