2014-2018 Chevy Silverado & GMC Sierra Crew cab 4 door for four 8” sub woofers Ported Enclosure
Massive Power & Clarity
Superior Performance
Advanced Technology
Premium Quality
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Elite Audio Custom Ported Enclosure is the ultimate bass solution for 2014–2018 Chevy Silverado and GMC Sierra Crew Cab owners who refuse to compromise on performance. Precision-engineered to house four 8-inch subwoofers, this enclosure fits seamlessly under the rear seat without requiring any vehicle modifications. The front-firing, single-chamber ported design is specifically tuned to maximize the output of 8-inch drivers, delivering deep, aggressive bass that breathes new life into your truck's audio system. Proudly engineered in the USA using premium-grade MDF, this box provides the structural rigidity needed for high-excursion subwoofers while maintaining a sleek, factory-integrated appearance.
Key Features
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Precision Fitment: Designed exclusively for the 2014–2018 Chevy Silverado and GMC Sierra Crew Cab (4-Door).
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Quad 8" Configuration: Maximizes surface area for intense bass pressure without taking up the entire cabin.
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Front-Firing Ported Design: Optimized air displacement for higher output and better low-end extension.
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No Modifications Required: Fits directly under the rear seat, preserving your floor space and factory interior.
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USA Engineered: Built with premium high-density MDF for maximum durability and zero cabinet flex.
Technical Specifications
| Feature | Details |
| Subwoofer Size | 4 x 8" |
| Enclosure Type | Ported (Single Chamber) |
| Firing Direction | Front Firing |
| Total Air Space | 2.6 ft³ |
| Mounting Depth | 8.5" |
| Compatibility | 2014–2018 Silverado/Sierra Crew Cab |
Important Note
⚠️ Disclaimer: Due to the custom nature of this enclosure, all sales are FINAL. Please verify your subwoofer mounting depth and vehicle cab style before purchasing to ensure a perfect fit.
Free shipping in the 48 U.S. states. Orders placed before 11 PM ET process next business day; shipping takes 5–8 days. Tracking info is emailed once shipped. To cancel, contact info@eliteautogear.com within 24 hours. Processed orders can’t be canceled. Thank you for choosing Elite Auto Gear!
Customer Support : 9:00 am to 5:00 pm
Address: 13446 Alondra Boulevard, Cerritos ,California 90703, United States
Email: info@eliteautogear.com
Phone: (877)-215-8187
From Boats to Jeeps to UTVs
Built to Be Heard Everywhere You Ride
Power That Dominates
Pro-grade audio engineering delivers crystal-clear highs and powerful bass that cuts through any environment. Built for the toughest rides and loudest adventures.
Built for Tough Rides
Engineered to withstand extreme conditions with rugged construction and weatherproof design.
Built for Power & Durability
Premium materials and advanced engineering ensure long-lasting performance in any environment.
Immersive Sound & Lighting
Experience rich, immersive audio with synchronized lighting effects that enhance every adventure.
Upgrade Your Ride With Pro-Level Sound
What Our Customers Are Saying
⭐ 4.9 stars reviews, Loved by Thousands
"Great packaging and super loud speakers would recommend buying and got delivered fast"
M**I
Verified Customer
"Installed Apocalypse 6.5 mids, DS18 tweeters, and Orion 6x9s in my 2014 Dodge Challenger RT — amazing sound! Quality and materials are top-notch. Definitely buying from them again."
B.
Verified Customer
"10 de 10 con el envío super rápido espero que si tengan buen sonido estan muy bonitas"
werita&chukito3
Verified Customer
"Definitely a must can't wait to install all my speakers I would buy from them again I got the apocalypse 6.5 mid range ds18 tweeters 3.5 full range and Orion 6x9 mid range"
Verified Customer
"Me gustó mucho buena calidad Y suena recio como yo pensaba si se las recomiendo buen sonido"
Verified Customer
"The speakers were loud and good"
B.
Verified Customer
"Great product but it only comes with one tweeter so make sure you buy 2"
obs_brycen
Verified Customer
"Súper buena calidad, buen sonido de voz, y llega en buenas condiciones"
s**a
Verified Customer
"Received them and they work as i expected"
bmtmanuel
Verified Customer
"They got here before estimated arrival and are in amazing condition"
**l
Verified Customer
"Muy buen producto de escucha muy bien"
M**S
Verified Customer