<> SUB BOX 2001-2013 FORD F250 / F350 Super Duty Super Cab - Sound Off Audio, Inc.
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Xtreme Enclosures

SUB BOX 2001-2013 FORD F250 / F350 Super Duty Super Cab

If you have subwoofer(s), type your sub model # here:

(Maximum Size: . Type: )

 Product Description

Custom Fit subwoofer enclosure for 2001-2013 Ford F-250 F-350 Super Duty Super Cab

  • dual or triple 8 inch subwoofers and dual 10
  • Subwoofers Fire down
  • Air space = .95 cu ft entire box
  • Mounting Depth = 4.5 inches
  • Fits underneath rear seat
  • seat folds up and box slides in
  • no loss of leg room
  • notched for brace on driver's side
  • remove jack handle and jack stays
  • 5/8 inch MDF
  • Speaker terminals included
  • Charcoal Gray carpet
  • Additional charge for OEM carpet colors

May fit 2002-2003 models (ask us)


Hole cutouts:


  • Standard hole cutout diameter for 8s = 7 inches
  • Standard hole cutout diameter for 10s = 9 1/8
  • If you don't know the actual hole cutout diameter, choose the standard cutout below.
  • If we don't have your actual diameter listed below, choose the standard cutout, then provide us with your sub model #.  No worries, we can look up the specs of your subs.

Popular subwoofers used by customers for this sub box:

  • Sundown SE series
  • Alpine SWRT
  • Kicker CVT, CompRT series, Kicker Comp series, Kicker Comp S, Comp D
  • JL Audio TW3 series



When you order this sub box, please provide us with your sub model # if you have subs already.  You can type the sub model # in the comment section of the order page.


  • Order directly from our website or
  • Call us to place order over the phone by calling 850-674-6363

We make custom subwoofer boxes for any vehicle or subwoofer you can imagine. We ship nationwide and have been in business for 20 years. If you have a woofer and you need a speaker box, look no further, these boxes are cnc cut and professionally constructed with pride in the USA; Florida to be exact. Call or text 850-674-6363 for any information. Thanks

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F250 EC 01-13 DUAL UTS
Estimated Build time of 3-10+ Business Days. Hand Built in the USA.
Calculated at checkout
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