2019-2026 GMC Sierra Crew Cab 4x8 Quad 8 Nemesis Bass Package

2019-2026 GMC Sierra Crew Cab 4x8 Quad 8 Nemesis Bass Package

Build serious bass into your 2019-2026 GMC Sierra Crew Cab with a complete Nemesis Audio quad 8 package. This is the right page for shoppers looking for 4x8, 4 8, 4/8, 4 8s, four 8s, or a complete GMC Sierra subwoofer package instead of a generic box.

Vehicle Fitment

• 2019-2026 GMC Sierra 1500 Crew Cab
• 2020-2026 GMC Sierra 2500HD Crew Cab
• 2020-2026 GMC Sierra 3500HD Crew Cab
• Confirm cab style, rear-seat layout, factory storage, and under-seat clearance before ordering

Package Includes

• Four Nemesis Audio 8-inch subwoofers
• Nemesis Audio amplifier support for a high-output quad 8 system
• Ported vehicle-specific 4x8 GMC Sierra Crew Cab subwoofer enclosure
• Amplifier wiring and factory-radio integration support

Best For

• Sierra owners who want stronger bass than a basic dual 8 setup
• Daily drivers that need a clean, truck-specific bass package
• Customers comparing GMC Sierra 1500, 2500HD, and 3500HD Crew Cab subwoofer upgrades
• Shipping or Dallas-area installation through Super Car Audio

Professional installation is recommended. Final fitment should be checked before shipping if the truck has factory storage, nonstandard seating, or prior audio modifications.