Many of our GM extended cab owners wanted us to design a box that could fit some of today's deeper, beefier subs.  This box is what we came up with.  This custom mdf dual downfire box has the deepest mounting depths possible to accommodate many of today's deeper subs.  Up to 7" deep.  So if you have a pair of deep 10s or 12s, or you just need max air space for them, then this is definitely the box for you. 

This is a two-chamber sealed box with .92 cu.ft. of air space per chamber. And it pounds like no other.  It can even be cut to accept 10" and 12" Kicker Square Solobarics.  Simply select that option and we will cut the holes accordingly.  This box is a must-have if you like your bass low and extremely loud and don't like being limited to just a few shallow models of subs. This is by far our best selling x-cab box for this truck. Get yours today! 

Logo Edition boxes are Here.  A perfect way to personalize your box.
You may have noticed the Silverado logo on the box in the photos above.  That does not come standard on the box.  However, we now off the option to get either Silverado or Sierra put on your box.  Below are some photos of each.  If you would like that option on your box, simply select the check box to the right.  

These are all we do so please do not ask for anything else.
Also, This box does NOT have an amp shelf nor will we make it with one
so please do not ask us that question. Or amp space box is here

 

 

 

 

 

BEFORE YOU BUY, Please Read!

Our Simple Guidelines will help you get the Correct box for your truck and avoid the hassle of buying box after box that doesn't fit.

GM is notorious for changing their trucks before the new model year truck is officially released and even building both styles in the same years.  

So any truck made around the time they changed styles can actually be either style or a hybrid of both.  The box on this page fits "CLASSIC" Extended Cab Pickups.  These were manufactured from 1999-2007.  However, some of the early 99 model trucks had the old body style (88-98 style which is different and needs our 88-98 box)

Likewise, If your tuck is a 2006 or 2007 model, GM was still building BOTH the "Classic" style and New Body style in 2006 and 2007.  Some trucks are turning out to be hybrids and is very confusing.  So the year is not as important as what your under seat area looks like.  Best thing to do is Look under your rear seat to find out what style you have.

A.  If your under seat looks like this 
You have a "Classic" x-cab. and you are on the right page.

B.  If your under seat looks like this and this, you have the new body style and you need our newer box model CXB07 and it's located here

item:ctb99-210/212
mounting depth: 7.0" 
air space: .92ea.
Price: $185
Sale Price $165