Vehicle specific ThunderForm enclosures are designed to utilize space in vehicles that would otherwise go unused to add a subwoofer enclosure. These enclosures are highly durable and provide a custom fit so that you do not have to sacrifice cargo space for added aftermarket performance. This model includes an integrated amplifier and single 12" Terminator series subwoofer for an unbeatable listening experience with a stealthy factory look.

Fits: Ford - F-150 Crew Cab/Ext Cab 2004-2008 (4 door models)

MTX Thunderforms

Vehicle Specific Custom Subwoofer Enclosures

 - Designed to take advantage of the unused space in your vehicle.

For over 20 years MTX has been manufacturing Thunderform vehicle specific custom subwoofer enclosures.

Thunderform Key Features

• Easy install with perfect factory fit
• Utilize unused space in vehicle
• Molded the same color throughout so scratches won't show
• Easily Integrates with factory audio system
• Available for over 225 vehicles
• Includes installation hardware for an easy, flawless install

Ford F150 ThunderForm

Stock Fit And Look

All Thunderform models are manufactured using either a highly technical HDPE resin rotational molding or hand laid fiberglass process to create lightweight, durable enclosures, often matching your interior and available in two formats: amplified or loaded. (Try getting a built-in amp from anyone else!)

Get Thunderforms How You Need Them

Most Thunderform models come in two versions:

• Amplified models include an integrated high efficiency amplifier and custom subwoofer that deliver an exceptional performance.
• Loaded models include a custom 4Ω subwoofer that can be used with existing amplifiers or with upgraded amplifiers.