null
Skip to main content

Ground Shaker

Ground Shaker UTPXL28B Black 8" Dual Forward Firing Ported Sub Box for Extended And Crew Cab Trucks

$499.99
$599.99
17% Off
SKU: UTPXL28B
Condition: New
Availability: Sold Out
Shipping: $39.99 (Fixed Shipping Cost)

Out of stock

Have more questions? Ask an Expert
Free shipping on orders over $200
30-Day Return Policy
Canadian Owned & Operated
Price Match Guarantee

Descriptions

About: Ground Shaker UTPXL28B Black 8" Dual Forward Firing Ported Sub Box for Extended And Crew Cab Trucks

Specifications:

  • Cutout Diameter: 7 1/2"
  • Total Air Volume: 1.76 Cubic ft.
  • Tuning Frequency: 34Hz
  • 1-Ground Shaker Port Dimensions: 4" x 13 1/2" 
  • Weight: 49 lbs.
  • Mounting Depth: 6 1/4" 

Dimensions:

  • Height: 9 1/4”
  • Rear Height: 6 1/2" 
  • Length: 49"
  • Depth: 13 1/4"

Construction:

  • 11/16” High Quality MDF Wood
  • Carpeted with Durable Trunk Liner Finish
  • Sealed with High Quality Titebond Silicone
  • Glued with Titebond Wood Glue
  • 2-Spring Loaded Terminals

Installation: 

  • Fits Under Rear Seat 
  • Front Firing 
  • Will Not Fit all Trucks (Check Dimensions for Fitment) 
  • Modification to Rear Seat may be Required 

Subwoofers Recommended: 

  • Massive Audio: HIPPOXL, GTX 
  • Skar Audio: EVL, ZVX, SVR, SDR 
  • CT Sounds: MESO, STRATO, TROPO
  • Sundown Audio: SA, U

Note: 

  • Speakers not included (Subwoofer Box Only) 
  • Subwoofer box will not fit all truck (Check Box Dimensions) 
  • For fitment some modifications to rear seat may be required 

Most products include a limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use. Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside manufacturer specifications. For complete warranty terms, exclusions, and claim procedures, please visit our full Warranty Policy page.

Most products include a limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use. Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside manufacturer specifications. For complete warranty terms, exclusions, and claim procedures, please visit our full Warranty Policy page.

Fast shipping across Canada from our Toronto warehouse. Most orders ship within 1–2 business days. Shipping costs and delivery estimates are calculated at checkout. Returns are accepted on eligible items that are unused and in original packaging within our return period. For full details, please view our Shipping Policy and Returns & Exchanges Policy.

Please note that final sale, clearance, open-box, and refurbished items are not eligible for returns or refunds. These items may only be covered under their respective warranty or exchange terms where applicable. For full details regarding open-box items, please review our Open Box Policy.

More Recommendations

See all

Free Shipping

Lowest Price

Quick Service

Buy now pay later

#

Pay with the Sezzle Buy Now Pay Later App

Shop Sales
#

Join Our Dealer network & benefit from exclusives brands

Become a Dealer