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Description
Dual 8" Ported Underseat Frontfiring MDF Subwoofer Enclosure (w/ Durable Bed Liner Finish) for 2007-2018 GMC/Chevy Double Cab, Extended Cab, and High Transmission TrucksDual 8" Ported Front Fire Subwoofer Enclosure 2007 2018 Chevy GMC Double Extended Cab Upgrade your truck's audio system with this premium vehicle specific dual 8 inch subwoofer enclosure, custom engineered to perfectly fit 2007 2018 Chevrolet Silverado and GMC Sierra 1500, 2500, and 3500 Extended and Double Cab models. Designed to maximize your cabin's acoustic space, this enclosure mounts seamlessly under the rear seat in a front firing
Dual 8" Ported Front-Fire Subwoofer Enclosure – 2007-2018 Chevy/GMC Double/Extended CabUpgrade your truck's audio system with this premium vehicle-specific dual 8-inch subwoofer enclosure, custom-engineered to perfectly fit 2007-2018 Chevrolet Silverado and GMC Sierra 1500, 2500, and 3500 Extended and Double Cab models. Designed to maximize your cabin's acoustic space, this enclosure mounts seamlessly under the rear seat in a front-firing configuration, ensuring you get thunderous low-end bass reproduction without sacrificing valuable passenger legroom or comfort.
Built for serious performance and long-term durability, this heavy-duty ported box is constructed from high-quality MDF wood to eliminate flex and internal resonance. It is entirely coated in an ultra-durable black bedliner spray finish, providing a rugged, weather-resistant barrier that protects against scratches, moisture, and the daily wear and tear of a working truck. Complete with premium terminal cups for a secure connection, this enclosure provides the ideal foundation for building a high-output custom soundstage in your daily driver.
Key Features & Specifications
- Vehicle Fitment: Custom designed for 2007-2018 Chevrolet Silverado and GMC Sierra 1500/2500/3500 (Extended Cab, Double Cab, and High Transmission models)
- Subwoofer Configuration: Cutouts hold two 8-inch subwoofers
- Enclosure Design: Vented/Ported front-fire design tuned to maximize bass output, airflow, and overall low-frequency response
- Premium Finish: Coated in a rugged, ultra-durable black bedliner spray finish to resist scratches, impacts, and moisture
- Space-Saving Fit: Contoured to mount perfectly under the rear truck seat without interfering with passenger legroom
- Heavy-Duty Construction: Built with high-grade MDF wood for a rock-solid, vibration-free acoustic chamber
- Terminals: Equipped with high-quality binding post terminal cups for reliable and secure wiring connections
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Best pillowcase ever
Color: Stormy Grey, Size: Standard
I bought these awhile ago and they have been by far my favorite pillowcases. They are worth the money. They have been through countless washes and you can’t even tell. They are cool to the touch and while they warm up a little during use they never get uncomfortably warm. They are so soft and feel great on my face. They don’t slip off the pillow as easily as my other pillow cases. I definitely recommend!
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Reviewed in the United States on December 9, 2024
★★★★★ 4
nice feel, but sleeps warmer
Color: Deep Purple, Size: King
The stretchy material does conform with the pillow more nicely than other pillowcases, but unlike other bamboo linens, I found it a much hotter material. I'd reserve this for fall/winter sleeping.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Soft and Comfortable
Color: Deep Purple, Size: Standard
My husband absolutely loves the purple pillowcases. He likes the extra length, the good quality and the softness. It could definitely fit a larger than normal pillow and has good stretch to it.
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Reviewed in the United States on March 13, 2025
★★★★★ 5
Perfect pillow case
Color: Stormy Grey, Size: Standard
Amazing stretch fabric. Nice color. Covers my purple pillow which is a queen size but, does not fit regular queen size case. I could have used a king size case but thought I would give these a try and it works. If you are on the fence, give these cases a try. I love my pillow even more now.
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Reviewed in the United States on August 10, 2024
★★★★★ 5
Soft, moisture wicking
Color: Stormy Grey, Size: Standard
Super soft pillow cases, very nice against face. They are also moisture wicking and dont seem to hold heat. My new favorite brand of sheets/pillows/pillowcases and maybe one day a bed.
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Reviewed in the United States on September 24, 2025