black 8" single forward firing ported sub box with two 6 1/2" speakers, fits extended & crew-cab trucks

Review the product information above for black 8" single forward firing ported sub box with two 6 1/2" speakers, fits extended & crew-cab trucks, including images, price, options, variants, availability, quantity, financing, and add-to-cart controls. This product can be matched with the right supporting equipment to help complete a reliable car audio system.

• SKU: GS-UTPXL18265B
• Brand: Ground Shaker
• Weight:
• Price: See current product price above.
• Availability: See live stock and option availability above.

Confirm vehicle fitment, mounting space, power requirements, impedance, wiring, enclosure needs, and option selections before ordering. For vehicle-specific builds, compare this product with your current system and installation plan.

Plan the install around clean power, proper wire size, correct fusing, secure mounting, and compatible equipment. Higher-output systems may need upgraded batteries, alternators, grounds, and installation accessories.

Shipping options, delivery timing, and return eligibility can vary by product, destination, and order details. Review checkout details before placing your order or contact Crystal Audio Solutions with questions.

How do I know if this product fits my vehicle or system?
Check the product details, dimensions, power requirements, options, and compatibility notes before ordering.

Do I need additional wiring, electrical upgrades, or installation accessories?
Many car audio upgrades require proper wiring, fusing, grounds, batteries, alternators, mounting hardware, or enclosures.

Can CAS help me choose matching products?
Yes. CAS can help match this product with the right supporting upgrades for your build.

What should I check before installation?
Confirm fitment, mounting depth, wiring size, fuse ratings, impedance, amplifier compatibility, and electrical capacity.