For over 20 years MTX has been manufacturing vehicle specific custom enclosures that are designed to be installed in space that would otherwise go unused in your vehicle.

All Thunderform models are manufactured to create lightweight, durable enclosures that are available in amplified or loaded models.

  • Amplified models include an integrated high efficiency amplifier and custom subwoofer that deliver an exceptional performance with easy installation. Mounting hardware and amplifier kits are included in each model to make installation easy.
  • Loaded models include a custom 4Ω, 200W RMS subwoofer that can be used with existing amplifiers or with upgraded amplifiers.
F250X00BK20A-TN

Ford F-250 Super Cab Amplified Dual 10 inch 200W RMS Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-250 Super Cab 2000-2014

Amplified Thunderform with dual, hard hitting, ten inch Terminator Subwoofers powered with 200 watts RMS.

Fits Ford - F-250 Super Cab 2000-2014. Finished in Black.

This model is made to order. Call 1-800-372-3029 to place order by phone if showing not in stock.

$749.95 $649.95
Availability: Built To Order
FMUST05BK12A-TN

Ford Mustang Amplified 12 inch 200W RMS Vehicle Specific Custom Subwoofer Enclosure

Fits Ford Mustang 2005-2013

Amplified Thunderform with a single, hard hitting, twelve inch Terminator Subwoofer powered with 200 watts RMS.

Fits Ford - Mustang 2005-2013. Finished in Black.

$649.95 $549.95
Availability: Out of stock
F-150EX-09A

Ford F-150 Super Cab Amplified 10 inch 200W RMS 4 Ohm Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-150 Super Cab 2009-2015

Amplified Thunderform with a single, hard hitting, ten inch Terminator Subwoofer and integrated 250-watt amplifier.

Fits Ford F-150 Super Cab 2009-2015.

$649.95 $549.95
Availability: In stock
F-150EX-09L

Ford F-150 Super Cab Loaded 10 inch 200W RMS 4 Ohm Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-150 Extended Cab 2009-2015

Loaded Thunderform with a single, hard hitting, ten inch Terminator Subwoofer rated at 250 watts RMS @ 4 ohms.

Fits Ford F-150 Super Cab 2009-2015.

$549.95 $449.95
Availability: In stock
F-150C-09A

Ford F-150 Super Crew Cab Amplified 10 inch 250W RMS Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-150 SuperCrew Cab 2009-2015

Amplified Thunderform with a single, hard hitting, ten inch Terminator Subwoofer and integrated 250-watt amplifier.

Fits Ford F-150 SuperCrew Cab 2009-2015.

$649.95 $549.95
Availability: In stock
F-150C-09L

Ford F-150 Super Crew Cab Loaded 10 inch 250W RMS 4 Ohm Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-150 Super Crew Cab 2009-2015

Loaded Thunderform with a single, hard hitting, ten inch Terminator Subwoofer rated at 250 watts RMS @ 4 ohms.

Fits Ford F-150 SuperCrew Cab 2009-2015.

$549.95 $449.95
Availability: In stock
F250X00C20A-TN

Ford F-250 Super Cab Amplified Dual 10 inch 200W RMS Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-250 Super Cab 2000-2014

Amplified Thunderform with dual, hard hitting, ten inch Terminator Subwoofers powered with 200 watts RMS.

Fits Ford - F-250 Super Cab 2000-2014. Finished in Charcoal.

This model is made to order. Call 1-800-372-3029 to place order by phone if showing not in stock.

$749.95 $649.95
Availability: Built To Order
F250X00T20A-TN

Ford F-250 Super Cab Amplified Dual 10 inch 200W RMS Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-250 Super Cab 2000-2014

Amplified Thunderform with dual, hard hitting, ten inch Terminator Subwoofers powered with 200 watts RMS.

Fits Ford - F-250 Super Cab 2000-2014. Finished in Tan.

This model is made to order. Call 1-800-372-3029 to place order by phone if showing not in stock.

$749.95 $649.95
Availability: Built To Order
FMUST05BK12-TN

Ford Mustang Loaded 12 inch 200W RMS 4 Ohm Vehicle Specific Custom Subwoofer Enclosure

Fits Ford Mustang 2005-2013

Loaded Thunderform with a single, hard hitting, twelve inch Terminator Subwoofer rated at 200 watts RMS @ 4 ohms.

Fits Ford - Mustang 2005-2013. Finished in Black.

$549.95 $449.95
Availability: Built To Order
F250X00BK20-TN

Ford F-250 Super Cab Loaded Dual 10 inch 400W RMS 4 Ohm Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-250 Super Cab 2000-2014

Loaded Thunderform with dual, hard hitting, ten inch Terminator Subwoofers rated at 200 watts RMS @ 4 ohms each.

Fits Ford - F-250 Super Cab 2000-2014. Finished in Black.

This model is made to order. Call 1-800-372-3029 to place order by phone if showing not in stock.

$549.95 $449.95
Availability: Built To Order
F250X00C20-TN

Ford F-250 Super Cab Loaded Dual 10 inch 400W RMS 4 Ohm Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-250 Super Cab 2000-2014

Loaded Thunderform with dual, hard hitting, ten inch Terminator Subwoofers rated at 200 watts RMS @ 4 ohms each.

Fits Ford - F-250 Super Cab 2000-2014. Finished in Charcoal.

This model is made to order. Call 1-800-372-3029 to place order by phone if showing not in stock.

$549.95 $449.95
Availability: Built To Order
F250X00T20-TN

Ford F-250 Super Cab Loaded Dual 10 inch 400W RMS 4 Ohm Vehicle Specific Custom Subwoofer Enclosure

Fits Ford F-250 Super Cab 2000-2014

Loaded Thunderform with dual, hard hitting, ten inch Terminator Subwoofers rated at 200 watts RMS @ 4 ohms each.

Fits Ford - F-250 Super Cab 2000-2014. Finished in Tan.

This model is made to order. Call 1-800-372-3029 to place order by phone if showing not in stock.

$549.95 $449.95
Availability: Built To Order