Stage 5 • Loaded Package
TRIPLE 12" Stage 5 Package (Everything Included)
This is a complete bolt-in bass package for Chevy Silverado and GMC Sierra Crew Cab trucks equipped with the factory Bose sound system: Stage 5 under seat enclosure loaded with (3) Wavtech Thin Pro 12's, powered by an Audio Dynamics X3K.1, plus the wiring, OEM Bose integration, harnesses, and a bolt-in amp rack. No piecing parts together.
Fitment: 2019–2026 Chevy Silverado / GMC Sierra 1500 + 2020–2026 2500HD/3500HD Crew Cab with factory Bose
Seat function: No seat lift required • Rear seat works normally
Install: Ship-to-you OR add install in Weatherford, TX
What you're buying:
A fully matched sub + amp package built around our Stage 5 enclosure — designed to integrate
with your factory Bose system, look OEM-plus, and hit hard daily.
What's Included
Included in this package
- CB Customs Stage 5 enclosure (sealed, under-seat, show-level finish)
- (3) Wavtech Thin Pro 12's subwoofers (installed + wired in-house)
- Audio Dynamics X3K.1 mono amplifier
- Premium OFC 0 gauge wiring kit (power/ground + hardware)
- Wavtech linkDQ + plug-and-play Bose integration harness (factory bass roll-off correction)
- Bolt-in amp rack (mounts using factory locations behind the rear seat)
- Plug-and-play enclosure wiring
Look: Stage 5 window + lighting + premium details
Goal: Clean sound + real output without losing rear seat
How It Sounds
Daily-driven bass that still hits
This setup is built for strong low end with control. The Wavtech linkDQ integrates with the factory Bose sound system and provides signal processing to correct factory bass roll off, the Audio Dynamics X3K.1 gives authority, and the Thin Pro 12's deliver fast, tight, hard-hitting bass with excellent output.
Before You Buy
Important info (quick answers)
- Fitment: Built for 2019–2026 Chevy Silverado / GMC Sierra Crew Cab trucks with factory Bose (HD models 2020–2026). If you're unsure, contact us with year/trim.
- Factory integration: Designed to work with your existing Bose system while retaining factory audio functionality.
- Lead time: Built to order. Lead time is confirmed after purchase.
- Shipping: Ships to your door ready to install (or choose install in Weatherford, TX).
- Support: Real help before and after ordering.
- Warranty: Lifetime craftsmanship warranty on the enclosure.
Tip: When you message us, include your truck year + model + trim, confirm that you have
the factory Bose sound system, and let us know whether you want "clean sound" or "max output."
Stage 5 Platinum Plus • In-Truck Video
See the Stage 5 Platinum Box Installed in a 2026 F-450 Platinum Plus
Quick walk-through showing the real fitment and details under the rear seat — clean install, premium finish, and it doesn’t mess with rear seat function. If you want to see how this actually looks in the truck, hit play.
Want the full build breakdown (photos + details)? Click View Full Build below.
Fitment note: This is built around the factory floor + seat geometry for an OEM-plus fit.
If you want us to confirm your exact truck (year/trim/sub choice), hit Contact Us and we’ll make sure you’re dialed.
Questions?
Still not sure which stage or setup to go with?
Shoot us a text or call at (682) 516-3358, email sales@cbcustoms.net, or reach out below with your truck year and goals.