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MTX Audio Thunderform FXP16UM (Maroon, Unloaded)

Unloaded Dual 8" Custom-fit Bass Slammer Subwoofer Enclosure for 1997-2003 Ford F-150 Extended Cab

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Bass Slammer unloaded, vehicle-specific enclosures are inspired by the same technology incorporated in MTX ThunderForm enclosures. Bass Slammer enclosures are available for many of the hottest-selling vehicles on the market and are made of a high-density polyethylene resin to ensure that you don’t get any of the “ping” common in fiberglass enclosures. The resin is color-matched to the interior color options available for each vehicle.

Bass Slammer enclosures are tough as nails. They are made using rotational molding. Unlike injection molding, Bass Slammer enclosures come out of the mold with no seams, so you don’t lose any of the sonic quality of the subwoofer.

Bass Slammer enclosures are also internally braced to eliminate flexing and warping so you get the tight bass you’re looking for.

  • Unloaded Dual 8" Custom-fit Bass Slammer Subwoofer Enclosure
  • Vehicle specific for 1997-2003 Ford F-150 Extended Cab
  • Also fits:
    • 1997-2003 Extended Cab 4-door model (Suicide door, not Quad cab)
  • Installs under the rear seat on passenger side. No loss of leg room. Passenger side rear seat will not fold down.
  • Cutout hole for a 8" subwoofer
  • Box volume: 0.8 cubic feet
  • Color is Maroon
  • Also available in: Gray, Tan, Charcoal, and Willow
  • Dimensions: 7"D x 12-1/4"W x 34"H
  • 1-year Manufacturer's warranty
Speaker Box / Enclosure Specifications
Subwoofer Size8"
Subwoofer Cutout ShapeRound / Circle
Box TypeSealed
Number of Subs/Speakers2
Box Style/ShapeVehicle Specific
Cutout Diameter or Length7"
Maximum Speaker DepthN/A
Total Box Volume.8 cubic feet
Height34"
Width12-1/4"
Depth7"
Second DepthN/A
Wood ThicknessN/A
Number of TerminalsN/A
Terminal TypeBinding posts
Box Exterior ColorMaroon
Box FinishPaint
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
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MTX FXP16UMMTX Audio Thunderform FXP16UM (Maroon, Unloaded)$297.99
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MTX Audio Thunderform FXP16UG (Gray, Unloaded)
Unloaded Dual 8" Custom-fit Bass Slammer Subwoofer Enclosure • Vehicle specific for 1997-2003 Ford F-150 Extended Cab • Installs Under the Rear Seat • 8" Subwoofer • Box Volume: 0.8 Cubic Feet • Gray
MTX Audio Thunderform FXP16UC (Charcoal, Unloaded)
Unloaded Dual 8" Custom-fit Bass Slammer Subwoofer Enclosure • Vehicle specific for 1997-2003 Ford F-150 Extended Cab • Installs Under the Rear Seat • 8" Subwoofer • Box Volume: 0.8 Cubic Feet • Charcoal
MTX Audio Thunderform FXP16UT (Tan, Unloaded)
Unloaded Dual 8" Custom-fit Bass Slammer Subwoofer Enclosure • Vehicle specific for 1997-2003 Ford F-150 Extended Cab • Installs Under the Rear Seat • 8" Subwoofer • Box Volume: 0.8 Cubic Feet • Tan
MTX Audio Thunderform FXP16UW (Willow Green, Unloaded)
Unloaded Dual 8" Custom-fit Bass Slammer Subwoofer Enclosure • Vehicle specific for 1997-2003 Ford F-150 Extended Cab • Installs Under the Rear Seat • 8" Subwoofer • Box Volume: 0.8 Cubic Feet • Willow Green

Product Summary

Manufacturer: MTX
Model number: FXP16UM
Weight: 13.00 lbs
Internal SKU: fxp16um
Internal product ID: 15720

Price Information

$379.99

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$297.99

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