Quad 8" Ported Underseat Frontfiring MDF Subwoofer Enclosure (w/ Durable Bed Liner Finish) for 2017+ GMC/Chevy Crew Cab Trucks



  • 4hole 8" Ported for GMC/Chevy 2007-Current Crew Cab
  • Underseat Frontfire
  • Finished with Durable Bed Liner
  • 2007-Current GMC/Chevy Crew Cab
  • Air Space:0.8 Cubic Feet (per sub)
  • Mounting Depth: 11.25"
  • Tuning Frequency: 35HZ
  • Dimensions: (WxDxFH/BH) 49″ X 13″ X 8-3/4″/6-1/4″

Shipping & Delivery

Free shipping applies to orders $50 and over shipped within the 48 Contiguous U.S. States. Most orders ship the same or next business day. Tracking is included and will be updated upon shipment.

Additional shipping fees are required for all other locations (including but not limited to): PO Boxes, APO/FPO address, AK, HI, PR, Guam, Canada, and other countries outside the USA

We will make every attempt to process and ship orders within 2 business days of your cleared payment. We will contact you, should there be a problem or delay with your order. Please allow proper delivery time for your package to arrive.

Orders via UPS Ground arrive within 2-6 business days. Smaller or lighter weight items typically ship via USPS First Class or USPS Priority Mail.