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MTX ThunderForm Unloaded Enclosure Holds two 10" subs — fits 1999-2006 Chevy Silverado Extra Cab (Charcoal)

Item # 236CXP20UC

Crinkled french fries, discarded receipts, old gum wrappers — you probably have everything in the hidden...

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Crinkled french fries, discarded receipts, old gum wrappers — you probably have everything in the hidden...

Item # 236CXP20UC

Shop all MTX Custom Sub Enclosures (Unloaded)

About the MTX ThunderForm Unloaded Enclosure

Steven Johnson
Crinkled french fries, discarded receipts, old gum wrappers — you probably have everything in the hidden corners of your vehicle except great bass. ThunderForm enclosures fill the nooks and crannies of your vehicle with low tones that stand out, but their factory look blends right in.

Crinkled french fries, discarded receipts, old gum wrappers — you probably have everything in the hidden corners of your vehicle except great bass. ThunderForm enclosures fill the nooks and crannies of your vehicle with low tones that stand out, but their factory look blends right in.

MTX engineers evaluate the "sonic signatures" of top-selling vehicles so they can design ThunderForms as custom acoustic matches. Each ThunderForm fits and blends inconspicuously into your vehicle, so you get great bass without losing any space. They're made of high-density polyethylene resin to curb resonances — they deliver bass that's tight, hard-hitting, and way down low. The airtight enclosure provides the correct internal volume to yield optimum bass response.

This enclosure comes without speakers — you install two of your favorite 10" subwoofers. For best results, MTX strongly recommends using a speaker designed for an enclosure with a volume of 0.95 cubic feet. The enclosure mounts under the driver's side of the rear seat in select 1999-2006 Chevy Silverado Extra Cab pickups.

Please check with us before purchasing by using the vehicle selector on our site, or calling an Advisor at 1-888-955-6000 to verify fit information.

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Product highlights:

  • custom-fit charcoal subwoofer enclosure for two 10" subs
  • mounts under rear seat on driver's side
  • fiberglass construction
  • volume: 1.9 cubic feet (0.95 per sub)
  • dimensions: 10-1/2"H x 48-1/2"W x 15-1/2"D
  • mounting depth: 5-3/8"
  • warranty: 2 years
  • MFR # CXP20UC

What's in the box:

  • Custom-fit unloaded dual 10" subwoofer enclosure
  • Hardware
  • Installation instructions

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More details on the MTX ThunderForm Unloaded Enclosure

Pat M.

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Features

Vehicle-Specific Custom Enclosure: The enclosure mounts under the rear seat on a 1999-2006 Chevy Extended Cab Truck, with no loss of leg room (factory jack kit is not disturbed). Also fits 1999-2001 GMC Pick-ups with 3rd door.

Note: Please refer to the Crutchfield Vehicle Selector to confirm fit for your vehicle.

Construction: The sealed enclosure features fiberglass construction and comes in factory colors (Charcoal, Blue, Red & Tan).

Tools For Installation:

  • Powered screwdriver
Note: Bolts to floor of vehicle.

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