This Package Includes the Following Items:
1 x 2014 - 2018 Chevy Silverado Crew Cab Truck Single 12" Sub Box Subwoofer Enclosure
1 x Kicker 43C124 12" Comp C12 Series Sub 150W RMS 4 Ohm SVC Car Subwoofer
1 x Kicker CXA400.1 Car Audio CX Series Class D Subwoofer Amplifier 800 Watt Sub Amp
1 x Harmony Audio HA-AK8 Car Stereo Complete 8 Gauge 900W Amp Amplifier Install Kit - Nickel

2014 - 2018 Chevy Silverado Crew Cab Truck Single 12" Sub Box Subwoofer Enclosure:
Features:
2014 - 2018 Chevy Silverado Crew Cab Truck Custom Single 12" Subwoofer Enclosure Sub BoxMounting Depth: 6-1/2"
Air Space: 0.74 Cubic Feet
Sealed Enclosure

Constructed with High Quality MDF
High Quality Twist Knob / Banana Plug Terminal Cup (Bare Wire 'up to 10GA')
High Quality Black Carpet
Overall Dimensions: 24-3/4" L X 16-1/2" W X 9-3/4" H
Enclosure installs under the rear seat, subs fire downward
This box fits:
2014 - 2018 Chevy Silverado Crew Cab Truck
Kicker 43C124 12" Comp C12 Series Sub 150W RMS 4 Ohm SVC Car Subwoofer:
Size: 12"
Impedance: 4 Ohms SVC
Power Watts: 300W Peak / 150W RMS
Sensitivity: 88.3 dB
Freq. Response: 27-500 Hz
Mounting Depth: 5-7/8"
Mounting Diameter: 11"
Kicker CXA400.1 Car Audio CX Series Class D Subwoofer Amplifier 800 Watt Sub Amp:
Specifications:RMS Power Rating: 4 ohms: 200 watts x 1 chan.
2 ohms: 400 watts x 1 chan.

Dimensions: 7-3/16"W x 8-1/8"D x 2-3/8"H
Harmony Audio HA-AK8 Car Stereo Complete 8 Gauge 900W Amp Amplifier Install Kit - Nickel: