GMC Sierra Regular Cab Pickup Truck
 

MTX subwoofer boxes offer three choices.  They are available empty as the BassSlammer series so you can load any brand subwoofer and the famous Thunderform series comes loaded with MTX subs plus are available with a built in amplifier.  The amplified versions save you money, time and valuable space in your car or truck.  All MTX boxes includes their factory warranty also.

Sealed Truck Boxes-check for regular cab sizes