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Designed for serious bass, this 8" quad-ported sub box delivers deep, resonant low-end with a 38 Hz tuning frequency and 2.50 ft³ total air volume. Its 7 1/8" cutout diameter (custom sizes available) and 1-slot port with a 30 in² area ensure tight, controlled bass that fills your Silverado cabin. Weighing 57 lbs with a 7 1/4" mounting depth and a 1 1/4" front baffle, it’s built for a secure, high-performance under-seat installation.
With a front height of 9 3/4 inches and a rear height of 6 1/2 inches, this sub box slides neatly under your Silverado’s rear seat for a clean, low-profile installation. Its 53" length maximizes internal volume for deeper, fuller bass performance. A 17" depth provides stability and durability, ensuring a secure, long-lasting setup for powerful, forward-firing sound.


Crafted from 5/8" high-quality MDF wood, this sub box is built for strength and long-lasting performance, even under intense bass loads. It’s carpeted with a durable trunk liner finish and sealed with high-quality Titebond silicone and wood glue for a vibration-free, airtight enclosure. Four spring-loaded terminals provide secure, easy connections for a professional-grade, high-output audio setup.

Experience visual brilliance with an elegant design and sturdy protection grille, eliminating the need for extra covers. Crafted with a newly designed aluminum cast basket featuring sleek struts and large ventilation windows, it combines style with superior performance.
Feel the impact of deep, powerful bass with woofers featuring double magnets for a dynamic and precise sound range. Enjoy cutting-edge technology with an extended membrane stroke of up to ±22 mm, perfectly controlled by specially shaped dual polycotton spiders and fine-tuned by MUSWAY’s expert sound engineers.


Enjoy superior efficiency with copper-clad aluminum voice coils (CCAW) that keep moving mass low, delivering optimal Thiele/Small parameters. Perfect for closed enclosures, this design ensures deep, clean, and accurate bass for an exceptional listening experience.
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