Adding bass to a truck can be a very complicated problem to tackle. especially when building a box! We offer pre-built enclosures that are ready to be dropped into your 2014 – UP GMC Sierra that offers unbeatable performance and sound quality that simply cannot be matched. This is a dual 12 down firing model enclosure.

Our boxes are made from precision cuts of MDF. They are then liquid nailed. nailed and completely sealed. We then wrap them with high quality carpet that matches most vehicle interiors. All Boxes feature high grade spring loaded terminal cup(s) for the absolute best connection possible. All the custom series enclosures are made to fit precisely into your vehicle to the get the max performance from every extra inch of wasted space.

We guarantee you will not only see a difference in the quality of the boxes we build. but you will hear the difference and that is what is it is truly all about.

Features:

• 2014 – UP GMC Sierra Crew Cab Truck Custom Dual 12 Subwoofer Enclosure Sub Box
  • Mounting Depth: 6-1/2
  • Air Space: 0.74 Cubic Feet per Sub
  • 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: 49-1/2 L X 16-1/2 W X 9-3/4 H
• Enclosure installs under the rear seat. subs fire downward

This box fits:

• 2014 – UP GMC Sierra Crew Cab Truck