Installation Time
(approx) 30 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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Features, Description, Q&A, Specs & Installation
High-Impact Bass Upgrade. The Quad 8-Inch Front Firing Subwoofer Box delivers aggressive, punchy bass with a low-profile design made specifically for the 2001 to 2006 Sierra 2500 HD Extended Cab. Featuring a quad 8-inch subwoofer layout and front-firing orientation, this enclosure is optimized for tight, controlled sound while maintaining cabin space. It's ideal for audio enthusiasts who want hard-hitting performance without compromising rear seating.
Construction and Appearance. Built from rugged 5/8-inch MDF, this subwoofer box is engineered for durability and acoustic precision. A poly-coated finish adds protection against moisture, wear, and corrosion, while also giving it a clean, professional look. The enclosure is precisely contoured to fit under the rear seat, ensuring a seamless and secure fit in your Sierra's interior.
Installation. Installation is easy with no modifications required. The enclosure is designed to fit directly under the rear seat, allowing a straightforward drop-in setup for quick bass enhancement.
Application. This Quad 8-Inch Front Firing Subwoofer Box fits 2001 to 2006 Sierra 2500 HD Extended Cab.
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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