Your search for custom car speaker box returned the following:

Custom-fit fiberglass enclosure with 12" W3v3 subwoofer Fits 2001-2003 Honda Civic Coupe

• gray Stealthbox® enclosure fits in passenger side rear corner of trunk
• one 12" W3v3 subwoofer
• power handling: 100-500W RMS
  

Custom-fit enclosure with 13.5" TW5 subwoofer — fits 2008-up Toyota Sequoia

• black Stealthbox® enclosure fits under the floor of the rear cargo area
• one 13.5" TW5 subwoofer
• power handling: 100-600W RMS

Custom-fit fiberglass enclosure with 10" W3v3 subwoofer — fits 1998-2010 Volkswagen Beetle coupe (Dark Gray)

OUT OF STOCK

• dark gray Stealthbox® enclosure fits in spare tire well
• one 10" W3v3 subwoofer
• power handling: 100-500W RMS

Custom-fit fiberglass enclosure with 10" W3v3-2 subwoofer — fits 2004-09 Mazda 3 hatchback

OUT OF STOCK

• Stealthbox® enclosure fits in the spare tire well under the spare tire
• one 10" W3v3 subwoofer
• power handling: 100-500W RMS

Custom-fit fiberglass enclosure with 10" W3v3 subwoofer — fits 2004-09 Mazda 3 sedan

OUT OF STOCK

• Stealthbox® enclosure fits in the spare tire well under the spare tire
• one 10" W3v3 subwoofer
• power handling: 100-500W RMS

Custom-fit fiberglass enclosure with 10" W3v3 subwoofer Fits 1998-2005 Volkswagen Jetta models

• dark gray Stealthbox® enclosure fits in spare tire well
• one 10" W3v3 subwoofer
• power handling: 100-500W RMS
  

Custom-fit fiberglass enclosure with 10" W3v3 subwoofer Fits 1998-up Volkswagen Beetle coupe

• dark gray Stealthbox® enclosure fits in spare tire well
• one 10" W3v3 subwoofer
• power handling: 100-500W RMS
  

Custom-fit fiberglass enclosure with 8" W7-3 subwoofer Fits 2008-up Ford SuperDuty Crew Cab (Black)

• black Stealthbox® designed enclosure fits inside factory center console
• one 8" W7-3 subwoofer
• power handling: 150-500W RMS
  

Custom-fit fiberglass enclosure with two 10" W1v2 subwoofers — fits 2007-up Chevrolet Silverado and GMC Sierra Extended Cab trucks (Light cashmere)

• light cashmere Stealthbox® enclosure fits under driver side rear seat
• two 10" W1v2 subwoofers
• power handling: 100-600W RMS

Custom-fit fiberglass enclosure with two 10" W1v2 subwoofers — fits 2007-up Chevrolet Silverado and GMC Sierra Extended Cab trucks (Ebony)

• ebony Stealthbox® enclosure fits under driver side rear seat
• two 10" W1v2 subwoofers
• power handling: 100-600W RMS

Custom-fit fiberglass enclosure with two 10" W1v2 subwoofers — fits 2007-up Chevrolet Silverado and GMC Sierra Extended Cab trucks (Light titanium)

• light titanium Stealthbox® enclosure fits under driver side rear seat
• two 10" W1v2 subwoofers
• power handling: 100-600W RMS

Custom-fit fiberglass enclosure with two 10" W1v2 subwoofers — fits 2007-up Chevrolet Silverado and GMC Sierra Extended Cab trucks (Dark titanium)

LOW STOCK

• dark titanium Stealthbox® enclosure fits under driver side rear seat
• two 10" W1v2 subwoofers
• power handling: 100-600W RMS

Custom-fit fiberglass enclosure with 10" W6v2 subwoofer Fits 1999-2005 Chevrolet Silverado / GMC Sierra Extended Cab (with full-bench rear seat) (1999-2002, Medium oak)

• medium oak Stealthbox® enclosure fits passenger side underneath the rear full-bench seat
• one 10" W6v2 subwoofer
• power handling: 150-600W RMS
  

Custom-fit fiberglass enclosure with 10" W6v2 subwoofer Fits 1999-2005 Chevrolet Silverado / GMC Sierra Extended Cab (with full-bench rear seat) (1999-2002, Graphite)

• graphite Stealthbox® enclosure fits passenger side underneath the rear full-bench seat
• one 10" W6v2 subwoofer
• power handling: 150-600W RMS
  

Custom-fit fiberglass enclosure with 10" W6v2 subwoofer Fits 1999-2005 Chevrolet Silverado / GMC Sierra Extended Cab (with full-bench rear seat) (1999-2002, Medium gray)

• medium gray Stealthbox® enclosure fits passenger side underneath the rear full-bench seat
• one 10" W6v2 subwoofer
• power handling: 150-600W RMS
  

Custom-fit fiberglass enclosure with 10" W6v2 subwoofer Fits 1999-2005 Chevrolet Silverado / GMC Sierra Extended Cab (with full-bench rear seat) (1999-2002, Blue)

• blue Stealthbox® enclosure fits passenger side underneath the rear full-bench seat
• one 10" W6v2 subwoofer
• power handling: 150-600W RMS
  

Custom-fit fiberglass enclosure with 10" W6v2 subwoofer Fits 1999-2005 Chevrolet Silverado / GMC Sierra Extended Cab (with full-bench rear seat) (2003-2005, Dark charcoal)

• dark charcoal Stealthbox® enclosure fits passenger side underneath the rear full-bench seat
• one 10" W6v2 subwoofer
• power handling: 150-600W RMS
  

Custom-fit fiberglass enclosure with 10" W6v2 subwoofer Fits 1999-2005 Chevrolet Silverado / GMC Sierra Extended Cab (with full-bench rear seat) (2003-2005, Tan)

• tan Stealthbox® enclosure fits passenger side underneath the rear full-bench seat
• one 10" W6v2 subwoofer
• power handling: 150-600W RMS
  

Custom-fit fiberglass enclosure with 10" W6v2 subwoofer Fits 1999-2005 Chevrolet Silverado / GMC Sierra Extended Cab (with full-bench rear seat) (2003-2005, Pewter)

LOW STOCK

• pewter Stealthbox® enclosure fits passenger side underneath the rear full-bench seat
• one 10" W6v2 subwoofer
• power handling: 150-600W RMS
  

Custom-fit fiberglass enclosure with 10" W6v2 subwoofer Fits 2004-2007 Nissan Armada (with manual liftgate) (Graphite/Titanium)

LOW STOCK

• graphite/titanium Stealthbox® enclosure fits in driver side rear corner storage pocket
• one 10" W6v2 subwoofer
• power handling: 150-600W RMS